From 7a04d6a6a2bc2e3d2045f0fa9df793c95dc9c9aa Mon Sep 17 00:00:00 2001
From: Tyler Veness <calcmogul@gmail.com>
Date: Tue, 11 Nov 2025 22:00:42 -0800
Subject: [PATCH] Merge wpiformat configs (#8365)

After replacing the remaining include guards with `#pragma once`, I was
able to merge all the wpiformat configs into one file in the repo root.
This should make the config easier to reason about and maintain in the
future.
---
 .styleguide                                   | 100 +++++++++++++++---
 cameraserver/.styleguide                      |  17 ---
 commandsv2/.styleguide                        |  17 ---
 commandsv3/.styleguide                        |  12 ---
 cscore/.styleguide                            |  35 ------
 .../native/cpp/ConfigurableSourceImpl.hpp     |   5 +-
 cscore/src/main/native/cpp/Frame.hpp          |   5 +-
 cscore/src/main/native/cpp/Handle.hpp         |   5 +-
 cscore/src/main/native/cpp/HttpCameraImpl.hpp |   5 +-
 cscore/src/main/native/cpp/Image.hpp          |   5 +-
 cscore/src/main/native/cpp/Instance.hpp       |   5 +-
 cscore/src/main/native/cpp/JpegUtil.hpp       |   5 +-
 cscore/src/main/native/cpp/Log.hpp            |   5 +-
 .../src/main/native/cpp/MjpegServerImpl.hpp   |   5 +-
 .../src/main/native/cpp/NetworkListener.hpp   |   5 +-
 cscore/src/main/native/cpp/Notifier.hpp       |   5 +-
 .../src/main/native/cpp/PropertyContainer.hpp |   5 +-
 cscore/src/main/native/cpp/PropertyImpl.hpp   |   5 +-
 cscore/src/main/native/cpp/RawSinkImpl.hpp    |   7 +-
 cscore/src/main/native/cpp/RawSourceImpl.hpp  |   5 +-
 cscore/src/main/native/cpp/SinkImpl.hpp       |   5 +-
 cscore/src/main/native/cpp/SourceImpl.hpp     |   5 +-
 cscore/src/main/native/cpp/Telemetry.hpp      |   5 +-
 .../native/cpp/UnlimitedHandleResource.hpp    |   5 +-
 .../src/main/native/cpp/UsbCameraListener.hpp |   5 +-
 cscore/src/main/native/cpp/c_util.hpp         |   5 +-
 .../native/cpp/default_init_allocator.hpp     |   5 +-
 .../src/main/native/include/wpi/cs/cscore.h   |   5 +-
 .../src/main/native/include/wpi/cs/cscore_c.h |   5 +-
 .../main/native/include/wpi/cs/cscore_cpp.hpp |   5 +-
 .../main/native/include/wpi/cs/cscore_cv.hpp  |   5 +-
 .../main/native/include/wpi/cs/cscore_oo.hpp  |   5 +-
 .../main/native/include/wpi/cs/cscore_raw.h   |   5 +-
 .../src/main/native/linux/UsbCameraBuffer.hpp |   5 +-
 .../src/main/native/linux/UsbCameraImpl.hpp   |   5 +-
 .../main/native/linux/UsbCameraProperty.hpp   |   5 +-
 cscore/src/main/native/linux/UsbUtil.hpp      |   5 +-
 .../src/main/native/windows/UsbCameraImpl.hpp |   5 +-
 datalog/.styleguide                           |  25 -----
 docs/.styleguide                              |   3 -
 glass/.styleguide                             |  20 ----
 hal/.styleguide                               |  34 ------
 hal/src/main/native/cpp/jni/HALUtil.h         |   5 +-
 ntcore/.styleguide                            |  33 ------
 ntcoreffi/.styleguide                         |  20 ----
 romiVendordep/.styleguide                     |  18 ----
 tools/datalogtool/.styleguide                 |  20 ----
 tools/outlineviewer/.styleguide               |  20 ----
 tools/sysid/.styleguide                       |  20 ----
 tools/wpical/.styleguide                      |  22 ----
 wpigui/.styleguide                            |  25 -----
 wpilibcExamples/.styleguide                   |   9 --
 wpimath/.styleguide                           |  36 -------
 wpinet/.styleguide                            |  35 ------
 .../include/wpi/net/EventLoopRunner.hpp       |   5 +-
 .../native/include/wpi/net/HttpParser.hpp     |   5 +-
 .../include/wpi/net/HttpServerConnection.hpp  |   5 +-
 .../main/native/include/wpi/net/HttpUtil.hpp  |   5 +-
 .../wpi/net/HttpWebSocketServerConnection.hpp |   5 +-
 .../main/native/include/wpi/net/MimeTypes.hpp |   5 +-
 .../include/wpi/net/NetworkAcceptor.hpp       |   5 +-
 .../native/include/wpi/net/NetworkStream.hpp  |   5 +-
 .../native/include/wpi/net/PortForwarder.hpp  |   5 -
 .../native/include/wpi/net/SocketError.hpp    |   5 +-
 .../main/native/include/wpi/net/UDPClient.hpp |   5 +-
 .../main/native/include/wpi/net/UrlParser.hpp |   5 +-
 .../main/native/include/wpi/net/WebServer.hpp |   5 -
 .../main/native/include/wpi/net/WebSocket.hpp |   5 +-
 .../include/wpi/net/WebSocketServer.hpp       |   5 +-
 .../native/include/wpi/net/WorkerThread.hpp   |   5 +-
 .../main/native/include/wpi/net/hostname.hpp  |   5 +-
 .../include/wpi/net/raw_socket_istream.hpp    |   5 +-
 .../include/wpi/net/raw_socket_ostream.hpp    |   5 +-
 .../native/include/wpi/net/raw_uv_ostream.hpp |   5 +-
 .../main/native/include/wpi/net/uv/Async.hpp  |   5 +-
 .../include/wpi/net/uv/AsyncFunction.hpp      |   5 +-
 .../main/native/include/wpi/net/uv/Buffer.hpp |   5 +-
 .../main/native/include/wpi/net/uv/Check.hpp  |   5 +-
 .../main/native/include/wpi/net/uv/Error.hpp  |   5 +-
 .../native/include/wpi/net/uv/FsEvent.hpp     |   5 +-
 .../native/include/wpi/net/uv/GetAddrInfo.hpp |   5 +-
 .../native/include/wpi/net/uv/GetNameInfo.hpp |   5 +-
 .../main/native/include/wpi/net/uv/Handle.hpp |   5 +-
 .../main/native/include/wpi/net/uv/Idle.hpp   |   5 +-
 .../main/native/include/wpi/net/uv/Loop.hpp   |   5 +-
 .../include/wpi/net/uv/NetworkStream.hpp      |   5 +-
 .../main/native/include/wpi/net/uv/Pipe.hpp   |   5 +-
 .../main/native/include/wpi/net/uv/Poll.hpp   |   5 +-
 .../native/include/wpi/net/uv/Prepare.hpp     |   5 +-
 .../native/include/wpi/net/uv/Process.hpp     |   5 +-
 .../native/include/wpi/net/uv/Request.hpp     |   5 +-
 .../main/native/include/wpi/net/uv/Signal.hpp |   5 +-
 .../main/native/include/wpi/net/uv/Stream.hpp |   5 +-
 .../main/native/include/wpi/net/uv/Tcp.hpp    |   5 +-
 .../main/native/include/wpi/net/uv/Timer.hpp  |   5 +-
 .../main/native/include/wpi/net/uv/Tty.hpp    |   5 +-
 .../main/native/include/wpi/net/uv/Udp.hpp    |   5 +-
 .../main/native/include/wpi/net/uv/Work.hpp   |   5 +-
 .../main/native/include/wpi/net/uv/util.hpp   |   5 +-
 wpiutil/.styleguide                           |  51 ---------
 .../main/native/include/wpi/util/Base64.hpp   |   6 +-
 .../include/wpi/util/CallbackManager.hpp      |   5 +-
 .../main/native/include/wpi/util/Demangle.hpp |   5 +-
 .../main/native/include/wpi/util/Logger.hpp   |   5 +-
 .../main/native/include/wpi/util/RawFrame.h   |   5 +-
 .../native/include/wpi/util/SafeThread.hpp    |   5 +-
 .../native/include/wpi/util/StackTrace.hpp    |   5 +-
 .../native/include/wpi/util/UidVector.hpp     |   5 +-
 .../native/include/wpi/util/deprecated.hpp    |   5 +-
 .../include/wpi/util/fmt/raw_ostream.hpp      |   5 +-
 .../main/native/include/wpi/util/future.hpp   |   5 +-
 .../main/native/include/wpi/util/jni_util.hpp |   5 +-
 .../main/native/include/wpi/util/nodiscard.h  |   5 +-
 .../include/wpi/util/priority_queue.hpp       |   5 +-
 .../native/include/wpi/util/raw_istream.hpp   |   5 +-
 .../src/main/native/include/wpi/util/sha1.hpp |   5 +-
 .../main/native/include/wpi/util/timestamp.h  |   5 +-
 117 files changed, 182 insertions(+), 873 deletions(-)
 delete mode 100644 cameraserver/.styleguide
 delete mode 100644 commandsv2/.styleguide
 delete mode 100644 commandsv3/.styleguide
 delete mode 100644 cscore/.styleguide
 delete mode 100644 datalog/.styleguide
 delete mode 100644 docs/.styleguide
 delete mode 100644 glass/.styleguide
 delete mode 100644 hal/.styleguide
 delete mode 100644 ntcore/.styleguide
 delete mode 100644 ntcoreffi/.styleguide
 delete mode 100644 romiVendordep/.styleguide
 delete mode 100644 tools/datalogtool/.styleguide
 delete mode 100644 tools/outlineviewer/.styleguide
 delete mode 100644 tools/sysid/.styleguide
 delete mode 100644 tools/wpical/.styleguide
 delete mode 100644 wpigui/.styleguide
 delete mode 100644 wpilibcExamples/.styleguide
 delete mode 100644 wpimath/.styleguide
 delete mode 100644 wpinet/.styleguide
 delete mode 100644 wpiutil/.styleguide

diff --git a/.styleguide b/.styleguide
index 0658c78717..f5da2f7ac8 100644
--- a/.styleguide
+++ b/.styleguide
@@ -1,5 +1,9 @@
+cHeaderFileInclude {
+  _c\.h$
+}
+
 cppHeaderFileInclude {
-  \.h$
+  (?<!_c)\.h$
   \.hpp$
   \.inc$
   \.inl$
@@ -9,29 +13,95 @@ cppSrcFileInclude {
   \.cpp$
 }
 
-modifiableFileExclude {
-  cmake/toolchains/
-  thirdparty/
-  \.patch$
-  gradlew
-  BUILD.bazel
-}
-
 generatedFileExclude {
-  FRCNetComm\.java$
-  simulation/gz_msgs/src/include/simulation/gz_msgs/msgs\.h$
-  fields/src/main/native/resources/
+  \.jinja$
   apriltag/src/test/resources/
-  wpilibc/src/generated/
+  docs/theme\.css$
+  fields/src/main/native/resources/
+  generated/
+  glass/src/app/native/mac/glass\.icns$
+  glass/src/app/native/resources/
+  glass/src/app/native/win/glass\.ico$
+  hal/src/main/native/athena/ctre/
+  hal/src/main/native/athena/frccansae/
+  hal/src/main/native/athena/rev/
+  hal/src/main/native/athena/visa/
+  hal/src/main/native/include/ctre/
+  hal/src/main/native/include/wpi/hal/UsageReporting\.h$
+  hal/src/main/native/systemcore/ctre/
+  hal/src/main/native/systemcore/rev/
+  ntcore/doc/
+  tools/datalogtool/src/main/native/mac/datalogtool\.icns$
+  tools/datalogtool/src/main/native/resources/
+  tools/datalogtool/src/main/native/win/datalogtool\.ico$
+  tools/outlineviewer/src/main/native/mac/ov\.icns$
+  tools/outlineviewer/src/main/native/resources/
+  tools/outlineviewer/src/main/native/win/outlineviewer\.ico$
+  tools/sysid/src/main/native/mac/sysid\.icns$
+  tools/sysid/src/main/native/resources/
+  tools/sysid/src/main/native/win/sysid\.ico$
+  tools/wpical/src/main/native/assets/
+  tools/wpical/src/main/native/mac/wpical\.icns$
+  tools/wpical/src/main/native/resources/
+  tools/wpical/src/main/native/thirdparty/
+  tools/wpical/src/main/native/win/wpical\.ico$
+  wpigui/src/main/native/cpp/portable-file-dialogs\.cpp$
+  wpigui/src/main/native/include/wpi/gui/portable-file-dialogs\.h$
+  wpimath/src/main/native/include/wpi/units/base\.hpp$
+  wpimath/src/main/native/include/wpi/units/units\.hpp$
+  wpimath/src/main/native/thirdparty/
+  wpimath/src/test/native/cpp/UnitsTest\.cpp$
+  wpinet/src/main/native/cpp/http_parser\.cpp$
+  wpinet/src/main/native/include/wpi/net/http_parser\.hpp$
+  wpinet/src/main/native/linux/AvahiClient\.cpp$
+  wpinet/src/main/native/linux/AvahiClient\.hpp$
+  wpinet/src/main/native/resources/
+  wpinet/src/main/native/thirdparty/
+  wpiutil/src/main/native/cpp/fs\.cpp$
+  wpiutil/src/main/native/include/wpi/util/FastQueue\.hpp$
+  wpiutil/src/main/native/include/wpi/util/fs\.hpp$
+  wpiutil/src/main/native/resources/
+  wpiutil/src/main/native/thirdparty/
+  wpiutil/src/test/native/cpp/json/
+  wpiutil/src/test/native/cpp/llvm/
+  wpiutil/src/test/native/cpp/span/
 
   apriltag/src/main/python/
   apriltag/src/test/python/
+  datalog/src/main/python/
+  datalog/src/test/python/
+  hal/src/main/python/
+  hal/src/test/python/
+  ntcore/src/main/python/
+  ntcore/src/test/python/
+  romiVendordep/src/main/python/
+  romiVendordep/src/test/python/
   wpilibc/src/main/python/
   wpilibc/src/test/python/
+  wpimath/src/main/python/
+  wpimath/src/test/python/
+  wpinet/src/main/python/
+  wpinet/src/test/python/
+  wpiutil/src/main/python/
+  wpiutil/src/test/python/
   xrpVendordep/src/main/python/
   xrpVendordep/src/test/python/
 }
 
-repoRootNameOverride {
-  wpilib
+modifiableFileExclude {
+  BUILD.bazel
+  \.patch$
+  datalog/examples/printlog/datalog\.py$
+  gradlew
+  ntcoreffi/src/main/native/include/DataLogManager\.h$
+  objcpp/
+  thirdparty/
+}
+
+licenseUpdateExclude {
+  cscore/src/main/native/cpp/default_init_allocator\.hpp$
+  datalog/examples/printlog
+  wpiutil/src/main/native/cpp/Base64\.cpp$
+  wpiutil/src/main/native/cpp/sha1\.cpp$
+  wpiutil/src/main/native/include/wpi/util/sha1\.hpp$
 }
diff --git a/cameraserver/.styleguide b/cameraserver/.styleguide
deleted file mode 100644
index 241bcd0f19..0000000000
--- a/cameraserver/.styleguide
+++ /dev/null
@@ -1,17 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-repoRootNameOverride {
-  cameraserver
-}
-
-includeGuardRoots {
-  cameraserver/src/main/native/include/
-}
diff --git a/commandsv2/.styleguide b/commandsv2/.styleguide
deleted file mode 100644
index 2c9b469246..0000000000
--- a/commandsv2/.styleguide
+++ /dev/null
@@ -1,17 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-repoRootNameOverride {
-  wpilib
-}
-
-generatedFileExclude {
-  commandsv2/src/generated/
-}
diff --git a/commandsv3/.styleguide b/commandsv3/.styleguide
deleted file mode 100644
index 36ea1fe068..0000000000
--- a/commandsv3/.styleguide
+++ /dev/null
@@ -1,12 +0,0 @@
-modifiableFileExclude {
-  \.patch$
-}
-
-generatedFileExclude {
-  src/generated/main/java/org/wpilib/command3/button/
-  src/generated/main/java/org/wpilib/command3/proto/
-}
-
-repoRootNameOverride {
-  commandsv3
-}
diff --git a/cscore/.styleguide b/cscore/.styleguide
deleted file mode 100644
index 30e1e912df..0000000000
--- a/cscore/.styleguide
+++ /dev/null
@@ -1,35 +0,0 @@
-cHeaderFileInclude {
-  _c\.h$
-}
-
-cppHeaderFileInclude {
-  (?<!_c)\.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-modifiableFileExclude {
-  objcpp
-}
-
-licenseUpdateExclude {
-  src/main/native/cpp/default_init_allocator\.hpp$
-}
-
-includeGuardRoots {
-  cscore/src/main/native/cpp/
-  cscore/src/main/native/include/
-  cscore/src/main/native/linux/
-  cscore/src/main/native/osx/
-  cscore/src/main/native/windows/
-  cscore/src/main/test/native/cpp/
-}
-
-repoRootNameOverride {
-  cscore
-}
diff --git a/cscore/src/main/native/cpp/ConfigurableSourceImpl.hpp b/cscore/src/main/native/cpp/ConfigurableSourceImpl.hpp
index b04f7f09bb..7e7954a351 100644
--- a/cscore/src/main/native/cpp/ConfigurableSourceImpl.hpp
+++ b/cscore/src/main/native/cpp/ConfigurableSourceImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_CONFIGURABLESOURCEIMPL_HPP_
-#define CSCORE_CONFIGURABLESOURCEIMPL_HPP_
+#pragma once
 
 #include <atomic>
 #include <functional>
@@ -49,5 +48,3 @@ class ConfigurableSourceImpl : public SourceImpl {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_CONFIGURABLESOURCEIMPL_HPP_
diff --git a/cscore/src/main/native/cpp/Frame.hpp b/cscore/src/main/native/cpp/Frame.hpp
index 51971027a6..c8673ebe32 100644
--- a/cscore/src/main/native/cpp/Frame.hpp
+++ b/cscore/src/main/native/cpp/Frame.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_FRAME_HPP_
-#define CSCORE_FRAME_HPP_
+#pragma once
 
 #include <atomic>
 #include <memory>
@@ -251,5 +250,3 @@ class Frame {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_FRAME_HPP_
diff --git a/cscore/src/main/native/cpp/Handle.hpp b/cscore/src/main/native/cpp/Handle.hpp
index 94aa99b2fd..696609327d 100644
--- a/cscore/src/main/native/cpp/Handle.hpp
+++ b/cscore/src/main/native/cpp/Handle.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_HANDLE_HPP_
-#define CSCORE_HANDLE_HPP_
+#pragma once
 
 #include "wpi/cs/cscore_c.h"
 #include "wpi/util/Synchronization.h"
@@ -64,5 +63,3 @@ class Handle {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_HANDLE_HPP_
diff --git a/cscore/src/main/native/cpp/HttpCameraImpl.hpp b/cscore/src/main/native/cpp/HttpCameraImpl.hpp
index 6ef175c731..c2b595362b 100644
--- a/cscore/src/main/native/cpp/HttpCameraImpl.hpp
+++ b/cscore/src/main/native/cpp/HttpCameraImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_HTTPCAMERAIMPL_HPP_
-#define CSCORE_HTTPCAMERAIMPL_HPP_
+#pragma once
 
 #include <atomic>
 #include <functional>
@@ -159,5 +158,3 @@ class AxisCameraImpl : public HttpCameraImpl {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_HTTPCAMERAIMPL_HPP_
diff --git a/cscore/src/main/native/cpp/Image.hpp b/cscore/src/main/native/cpp/Image.hpp
index 867cacf00d..28a49d2f3f 100644
--- a/cscore/src/main/native/cpp/Image.hpp
+++ b/cscore/src/main/native/cpp/Image.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_IMAGE_HPP_
-#define CSCORE_IMAGE_HPP_
+#pragma once
 
 #include <string_view>
 #include <vector>
@@ -130,5 +129,3 @@ class Image {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_IMAGE_HPP_
diff --git a/cscore/src/main/native/cpp/Instance.hpp b/cscore/src/main/native/cpp/Instance.hpp
index efdfb01c97..e07a7d3ac1 100644
--- a/cscore/src/main/native/cpp/Instance.hpp
+++ b/cscore/src/main/native/cpp/Instance.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_INSTANCE_HPP_
-#define CSCORE_INSTANCE_HPP_
+#pragma once
 
 #include <memory>
 #include <utility>
@@ -111,5 +110,3 @@ class Instance {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_INSTANCE_HPP_
diff --git a/cscore/src/main/native/cpp/JpegUtil.hpp b/cscore/src/main/native/cpp/JpegUtil.hpp
index 43560b6b24..48e19e21f9 100644
--- a/cscore/src/main/native/cpp/JpegUtil.hpp
+++ b/cscore/src/main/native/cpp/JpegUtil.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_JPEGUTIL_HPP_
-#define CSCORE_JPEGUTIL_HPP_
+#pragma once
 
 #include <string>
 #include <string_view>
@@ -26,5 +25,3 @@ bool ReadJpeg(wpi::util::raw_istream& is, std::string& buf, int* width,
               int* height);
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_JPEGUTIL_HPP_
diff --git a/cscore/src/main/native/cpp/Log.hpp b/cscore/src/main/native/cpp/Log.hpp
index 913a3c377e..ec78f22c61 100644
--- a/cscore/src/main/native/cpp/Log.hpp
+++ b/cscore/src/main/native/cpp/Log.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_LOG_HPP_
-#define CSCORE_LOG_HPP_
+#pragma once
 
 #include <string_view>
 
@@ -85,5 +84,3 @@ inline void NamedLog(wpi::util::Logger& logger, unsigned int level,
 #define SDEBUG4(format, ...) \
   SLOG(::wpi::util::WPI_LOG_DEBUG4, format __VA_OPT__(, ) __VA_ARGS__)
 #endif
-
-#endif  // CSCORE_LOG_HPP_
diff --git a/cscore/src/main/native/cpp/MjpegServerImpl.hpp b/cscore/src/main/native/cpp/MjpegServerImpl.hpp
index ad9572e7f1..2397980f2b 100644
--- a/cscore/src/main/native/cpp/MjpegServerImpl.hpp
+++ b/cscore/src/main/native/cpp/MjpegServerImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_MJPEGSERVERIMPL_HPP_
-#define CSCORE_MJPEGSERVERIMPL_HPP_
+#pragma once
 
 #include <atomic>
 #include <memory>
@@ -63,5 +62,3 @@ class MjpegServerImpl : public SinkImpl {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_MJPEGSERVERIMPL_HPP_
diff --git a/cscore/src/main/native/cpp/NetworkListener.hpp b/cscore/src/main/native/cpp/NetworkListener.hpp
index 4eb3c0cd97..02c0319916 100644
--- a/cscore/src/main/native/cpp/NetworkListener.hpp
+++ b/cscore/src/main/native/cpp/NetworkListener.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_NETWORKLISTENER_HPP_
-#define CSCORE_NETWORKLISTENER_HPP_
+#pragma once
 
 #include <memory>
 
@@ -27,5 +26,3 @@ class NetworkListener {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_NETWORKLISTENER_HPP_
diff --git a/cscore/src/main/native/cpp/Notifier.hpp b/cscore/src/main/native/cpp/Notifier.hpp
index 2ee7b605a6..aef6557004 100644
--- a/cscore/src/main/native/cpp/Notifier.hpp
+++ b/cscore/src/main/native/cpp/Notifier.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_NOTIFIER_HPP_
-#define CSCORE_NOTIFIER_HPP_
+#pragma once
 
 #include <functional>
 #include <utility>
@@ -89,5 +88,3 @@ class Notifier
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_NOTIFIER_HPP_
diff --git a/cscore/src/main/native/cpp/PropertyContainer.hpp b/cscore/src/main/native/cpp/PropertyContainer.hpp
index 71ef872631..b1f25439e1 100644
--- a/cscore/src/main/native/cpp/PropertyContainer.hpp
+++ b/cscore/src/main/native/cpp/PropertyContainer.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_PROPERTYCONTAINER_HPP_
-#define CSCORE_PROPERTYCONTAINER_HPP_
+#pragma once
 
 #include <atomic>
 #include <cstddef>
@@ -125,5 +124,3 @@ class PropertyContainer {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_PROPERTYCONTAINER_HPP_
diff --git a/cscore/src/main/native/cpp/PropertyImpl.hpp b/cscore/src/main/native/cpp/PropertyImpl.hpp
index b53bc98963..adb343c7c1 100644
--- a/cscore/src/main/native/cpp/PropertyImpl.hpp
+++ b/cscore/src/main/native/cpp/PropertyImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_PROPERTYIMPL_HPP_
-#define CSCORE_PROPERTYIMPL_HPP_
+#pragma once
 
 #include <string>
 #include <string_view>
@@ -49,5 +48,3 @@ class PropertyImpl {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_PROPERTYIMPL_HPP_
diff --git a/cscore/src/main/native/cpp/RawSinkImpl.hpp b/cscore/src/main/native/cpp/RawSinkImpl.hpp
index 8ffc75b197..ab4ed8e492 100644
--- a/cscore/src/main/native/cpp/RawSinkImpl.hpp
+++ b/cscore/src/main/native/cpp/RawSinkImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_RAWSINKIMPL_HPP_
-#define CSCORE_RAWSINKIMPL_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -18,6 +17,7 @@
 #include "wpi/util/condition_variable.hpp"
 
 namespace wpi::cs {
+
 class SourceImpl;
 
 class RawSinkImpl : public SinkImpl {
@@ -48,6 +48,5 @@ class RawSinkImpl : public SinkImpl {
   std::thread m_thread;
   std::function<void(uint64_t time)> m_processFrame;
 };
-}  // namespace wpi::cs
 
-#endif  // CSCORE_RAWSINKIMPL_HPP_
+}  // namespace wpi::cs
diff --git a/cscore/src/main/native/cpp/RawSourceImpl.hpp b/cscore/src/main/native/cpp/RawSourceImpl.hpp
index e5ad762a6a..d1864a485d 100644
--- a/cscore/src/main/native/cpp/RawSourceImpl.hpp
+++ b/cscore/src/main/native/cpp/RawSourceImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_RAWSOURCEIMPL_HPP_
-#define CSCORE_RAWSOURCEIMPL_HPP_
+#pragma once
 
 #include <atomic>
 #include <functional>
@@ -33,5 +32,3 @@ class RawSourceImpl : public ConfigurableSourceImpl {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_RAWSOURCEIMPL_HPP_
diff --git a/cscore/src/main/native/cpp/SinkImpl.hpp b/cscore/src/main/native/cpp/SinkImpl.hpp
index 60da9a16cc..c1494d1436 100644
--- a/cscore/src/main/native/cpp/SinkImpl.hpp
+++ b/cscore/src/main/native/cpp/SinkImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_SINKIMPL_HPP_
-#define CSCORE_SINKIMPL_HPP_
+#pragma once
 
 #include <memory>
 #include <string>
@@ -73,5 +72,3 @@ class SinkImpl : public PropertyContainer {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_SINKIMPL_HPP_
diff --git a/cscore/src/main/native/cpp/SourceImpl.hpp b/cscore/src/main/native/cpp/SourceImpl.hpp
index fa4ac0b718..b2d64c10ad 100644
--- a/cscore/src/main/native/cpp/SourceImpl.hpp
+++ b/cscore/src/main/native/cpp/SourceImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_SOURCEIMPL_HPP_
-#define CSCORE_SOURCEIMPL_HPP_
+#pragma once
 
 #include <atomic>
 #include <cstddef>
@@ -194,5 +193,3 @@ class SourceImpl : public PropertyContainer {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_SOURCEIMPL_HPP_
diff --git a/cscore/src/main/native/cpp/Telemetry.hpp b/cscore/src/main/native/cpp/Telemetry.hpp
index 51defeb5f8..a6b5e24c41 100644
--- a/cscore/src/main/native/cpp/Telemetry.hpp
+++ b/cscore/src/main/native/cpp/Telemetry.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_TELEMETRY_HPP_
-#define CSCORE_TELEMETRY_HPP_
+#pragma once
 
 #include "wpi/cs/cscore_cpp.hpp"
 #include "wpi/util/SafeThread.hpp"
@@ -42,5 +41,3 @@ class Telemetry {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_TELEMETRY_HPP_
diff --git a/cscore/src/main/native/cpp/UnlimitedHandleResource.hpp b/cscore/src/main/native/cpp/UnlimitedHandleResource.hpp
index 953d49a3e7..020428b221 100644
--- a/cscore/src/main/native/cpp/UnlimitedHandleResource.hpp
+++ b/cscore/src/main/native/cpp/UnlimitedHandleResource.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_UNLIMITEDHANDLERESOURCE_HPP_
-#define CSCORE_UNLIMITEDHANDLERESOURCE_HPP_
+#pragma once
 
 #include <memory>
 #include <span>
@@ -190,5 +189,3 @@ UnlimitedHandleResource<THandle, TStruct, typeValue, TMutex>::FindIf(F func) {
 }
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_UNLIMITEDHANDLERESOURCE_HPP_
diff --git a/cscore/src/main/native/cpp/UsbCameraListener.hpp b/cscore/src/main/native/cpp/UsbCameraListener.hpp
index 750f6e8444..e6806abe46 100644
--- a/cscore/src/main/native/cpp/UsbCameraListener.hpp
+++ b/cscore/src/main/native/cpp/UsbCameraListener.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_USBCAMERALISTENER_HPP_
-#define CSCORE_USBCAMERALISTENER_HPP_
+#pragma once
 
 #include <memory>
 
@@ -27,5 +26,3 @@ class UsbCameraListener {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_USBCAMERALISTENER_HPP_
diff --git a/cscore/src/main/native/cpp/c_util.hpp b/cscore/src/main/native/cpp/c_util.hpp
index 5fc3c46bc3..f2a3b11e47 100644
--- a/cscore/src/main/native/cpp/c_util.hpp
+++ b/cscore/src/main/native/cpp/c_util.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_C_UTIL_HPP_
-#define CSCORE_C_UTIL_HPP_
+#pragma once
 
 #include <cstring>
 #include <string_view>
@@ -18,5 +17,3 @@ inline void ConvertToC(struct WPI_String* output, std::string_view str) {
 }
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_C_UTIL_HPP_
diff --git a/cscore/src/main/native/cpp/default_init_allocator.hpp b/cscore/src/main/native/cpp/default_init_allocator.hpp
index 19de39a98c..0713cebbc1 100644
--- a/cscore/src/main/native/cpp/default_init_allocator.hpp
+++ b/cscore/src/main/native/cpp/default_init_allocator.hpp
@@ -2,8 +2,7 @@
 // http://stackoverflow.com/questions/21028299/is-this-behavior-of-vectorresizesize-type-n-under-c11-and-boost-container
 // Credits: Casey and Howard Hinnant
 
-#ifndef CSCORE_DEFAULT_INIT_ALLOCATOR_HPP_
-#define CSCORE_DEFAULT_INIT_ALLOCATOR_HPP_
+#pragma once
 
 #include <memory>
 #include <utility>
@@ -37,5 +36,3 @@ class default_init_allocator : public A {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_DEFAULT_INIT_ALLOCATOR_HPP_
diff --git a/cscore/src/main/native/include/wpi/cs/cscore.h b/cscore/src/main/native/include/wpi/cs/cscore.h
index 44fffae4a4..88e0934638 100644
--- a/cscore/src/main/native/include/wpi/cs/cscore.h
+++ b/cscore/src/main/native/include/wpi/cs/cscore.h
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_WPI_CS_CSCORE_H_
-#define CSCORE_WPI_CS_CSCORE_H_
+#pragma once
 
 /* C API */
 #include "wpi/cs/cscore_c.h"
@@ -13,5 +12,3 @@
 #include "wpi/cs/cscore_cpp.hpp"
 #include "wpi/cs/cscore_oo.hpp"
 #endif /* __cplusplus */
-
-#endif  // CSCORE_WPI_CS_CSCORE_H_
diff --git a/cscore/src/main/native/include/wpi/cs/cscore_c.h b/cscore/src/main/native/include/wpi/cs/cscore_c.h
index 9b333515da..b6cd79b493 100644
--- a/cscore/src/main/native/include/wpi/cs/cscore_c.h
+++ b/cscore/src/main/native/include/wpi/cs/cscore_c.h
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_WPI_CS_CSCORE_C_H_
-#define CSCORE_WPI_CS_CSCORE_C_H_
+#pragma once
 
 #include <stdint.h>
 
@@ -527,5 +526,3 @@ struct WPI_String* CS_GetNetworkInterfaces(int* count);
 #ifdef __cplusplus
 }  // extern "C"
 #endif
-
-#endif  // CSCORE_WPI_CS_CSCORE_C_H_
diff --git a/cscore/src/main/native/include/wpi/cs/cscore_cpp.hpp b/cscore/src/main/native/include/wpi/cs/cscore_cpp.hpp
index f2016a53d6..d1750679a7 100644
--- a/cscore/src/main/native/include/wpi/cs/cscore_cpp.hpp
+++ b/cscore/src/main/native/include/wpi/cs/cscore_cpp.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_WPI_CS_CSCORE_CPP_HPP_
-#define CSCORE_WPI_CS_CSCORE_CPP_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -456,5 +455,3 @@ std::vector<std::string> GetNetworkInterfaces();
 // Disable uninitialized variable warnings
 #pragma warning(pop)
 #endif
-
-#endif  // CSCORE_WPI_CS_CSCORE_CPP_HPP_
diff --git a/cscore/src/main/native/include/wpi/cs/cscore_cv.hpp b/cscore/src/main/native/include/wpi/cs/cscore_cv.hpp
index 591f9dc21e..b1ee3b5d45 100644
--- a/cscore/src/main/native/include/wpi/cs/cscore_cv.hpp
+++ b/cscore/src/main/native/include/wpi/cs/cscore_cv.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_WPI_CS_CSCORE_CV_HPP_
-#define CSCORE_WPI_CS_CSCORE_CV_HPP_
+#pragma once
 
 #include <functional>
 
@@ -432,5 +431,3 @@ inline WPI_TimestampSource CvSink::LastFrameTimeSource() {
 }
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_WPI_CS_CSCORE_CV_HPP_
diff --git a/cscore/src/main/native/include/wpi/cs/cscore_oo.hpp b/cscore/src/main/native/include/wpi/cs/cscore_oo.hpp
index 065b2f644a..849e329489 100644
--- a/cscore/src/main/native/include/wpi/cs/cscore_oo.hpp
+++ b/cscore/src/main/native/include/wpi/cs/cscore_oo.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_WPI_CS_CSCORE_OO_HPP_
-#define CSCORE_WPI_CS_CSCORE_OO_HPP_
+#pragma once
 
 #include <functional>
 #include <initializer_list>
@@ -1578,5 +1577,3 @@ class VideoListener {
 /** @} */
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_WPI_CS_CSCORE_OO_HPP_
diff --git a/cscore/src/main/native/include/wpi/cs/cscore_raw.h b/cscore/src/main/native/include/wpi/cs/cscore_raw.h
index 9b758c15ac..5d4f0a48c4 100644
--- a/cscore/src/main/native/include/wpi/cs/cscore_raw.h
+++ b/cscore/src/main/native/include/wpi/cs/cscore_raw.h
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_WPI_CS_CSCORE_RAW_H_
-#define CSCORE_WPI_CS_CSCORE_RAW_H_
+#pragma once
 
 #include <functional>
 
@@ -239,5 +238,3 @@ inline uint64_t RawSink::GrabFrameLastTime(wpi::util::RawFrame& image,
 }  // namespace wpi::cs
 
 #endif
-
-#endif  // CSCORE_WPI_CS_CSCORE_RAW_H_
diff --git a/cscore/src/main/native/linux/UsbCameraBuffer.hpp b/cscore/src/main/native/linux/UsbCameraBuffer.hpp
index c2aa829325..61c10deb14 100644
--- a/cscore/src/main/native/linux/UsbCameraBuffer.hpp
+++ b/cscore/src/main/native/linux/UsbCameraBuffer.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_USBCAMERABUFFER_HPP_
-#define CSCORE_USBCAMERABUFFER_HPP_
+#pragma once
 
 #include <sys/mman.h>
 
@@ -51,5 +50,3 @@ class UsbCameraBuffer {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_USBCAMERABUFFER_HPP_
diff --git a/cscore/src/main/native/linux/UsbCameraImpl.hpp b/cscore/src/main/native/linux/UsbCameraImpl.hpp
index 09b0af673b..203a42eea7 100644
--- a/cscore/src/main/native/linux/UsbCameraImpl.hpp
+++ b/cscore/src/main/native/linux/UsbCameraImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_USBCAMERAIMPL_HPP_
-#define CSCORE_USBCAMERAIMPL_HPP_
+#pragma once
 
 #include <linux/videodev2.h>
 
@@ -178,5 +177,3 @@ class UsbCameraImpl : public SourceImpl {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_USBCAMERAIMPL_HPP_
diff --git a/cscore/src/main/native/linux/UsbCameraProperty.hpp b/cscore/src/main/native/linux/UsbCameraProperty.hpp
index bb880d8da5..2af39bccac 100644
--- a/cscore/src/main/native/linux/UsbCameraProperty.hpp
+++ b/cscore/src/main/native/linux/UsbCameraProperty.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_USBCAMERAPROPERTY_HPP_
-#define CSCORE_USBCAMERAPROPERTY_HPP_
+#pragma once
 
 #include <linux/videodev2.h>
 
@@ -74,5 +73,3 @@ class UsbCameraProperty : public PropertyImpl {
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_USBCAMERAPROPERTY_HPP_
diff --git a/cscore/src/main/native/linux/UsbUtil.hpp b/cscore/src/main/native/linux/UsbUtil.hpp
index 207e95f1ea..ae378811dd 100644
--- a/cscore/src/main/native/linux/UsbUtil.hpp
+++ b/cscore/src/main/native/linux/UsbUtil.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_USBUTIL_HPP_
-#define CSCORE_USBUTIL_HPP_
+#pragma once
 
 #include <string>
 
@@ -20,5 +19,3 @@ int CheckedIoctl(int fd, unsigned long req, void* data,  // NOLINT(runtime/int)
   CheckedIoctl(fd, req, data, #req, __FILE__, __LINE__, true)
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_USBUTIL_HPP_
diff --git a/cscore/src/main/native/windows/UsbCameraImpl.hpp b/cscore/src/main/native/windows/UsbCameraImpl.hpp
index 2192e39593..c31d39c49e 100644
--- a/cscore/src/main/native/windows/UsbCameraImpl.hpp
+++ b/cscore/src/main/native/windows/UsbCameraImpl.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef CSCORE_USBCAMERAIMPL_HPP_
-#define CSCORE_USBCAMERAIMPL_HPP_
+#pragma once
 
 #include <windows.h>
 #include <dbt.h>
@@ -174,5 +173,3 @@ class UsbCameraImpl : public SourceImpl,
 };
 
 }  // namespace wpi::cs
-
-#endif  // CSCORE_USBCAMERAIMPL_HPP_
diff --git a/datalog/.styleguide b/datalog/.styleguide
deleted file mode 100644
index 317db43e1f..0000000000
--- a/datalog/.styleguide
+++ /dev/null
@@ -1,25 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  src/main/python/
-  src/test/python/
-}
-
-licenseUpdateExclude {
-  examples/printlog
-}
-
-modifiableFileExclude {
-  examples/printlog/datalog\.py$
-}
-
-repoRootNameOverride {
-  datalog
-}
diff --git a/docs/.styleguide b/docs/.styleguide
deleted file mode 100644
index c2d4fd5053..0000000000
--- a/docs/.styleguide
+++ /dev/null
@@ -1,3 +0,0 @@
-generatedFileExclude {
-  theme.css
-}
diff --git a/glass/.styleguide b/glass/.styleguide
deleted file mode 100644
index 3be6b4f48f..0000000000
--- a/glass/.styleguide
+++ /dev/null
@@ -1,20 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  src/app/native/resources/
-  src/app/native/win/glass.ico
-  src/app/native/mac/glass.icns
-}
-
-repoRootNameOverride {
-  glass
-}
diff --git a/hal/.styleguide b/hal/.styleguide
deleted file mode 100644
index fec10d1175..0000000000
--- a/hal/.styleguide
+++ /dev/null
@@ -1,34 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  hal/src/main/native/athena/ctre/
-  hal/src/main/native/athena/rev/
-  hal/src/main/native/athena/frccansae/
-  hal/src/main/native/athena/visa/
-  hal/src/main/native/include/ctre/
-  hal/src/main/native/systemcore/ctre/
-  hal/src/main/native/systemcore/rev/
-  UsageReporting\.h$
-  src/generated/main/native/cpp
-
-  src/main/python/
-  src/test/python/
-}
-
-modifiableFileExclude {
-  \.patch$
-  \.png$
-  \.so$
-}
-
-repoRootNameOverride {
-  hal
-}
diff --git a/hal/src/main/native/cpp/jni/HALUtil.h b/hal/src/main/native/cpp/jni/HALUtil.h
index 88adab4acc..4b46482785 100644
--- a/hal/src/main/native/cpp/jni/HALUtil.h
+++ b/hal/src/main/native/cpp/jni/HALUtil.h
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef HAL_HAL_SRC_MAIN_NATIVE_CPP_JNI_HALUTIL_H_
-#define HAL_HAL_SRC_MAIN_NATIVE_CPP_JNI_HALUTIL_H_
+#pragma once
 
 #include <jni.h>
 #include <stdint.h>
@@ -85,5 +84,3 @@ jobject CreateCANStreamMessage(JNIEnv* env);
 JavaVM* GetJVM();
 
 }  // namespace wpi::hal
-
-#endif  // HAL_HAL_SRC_MAIN_NATIVE_CPP_JNI_HALUTIL_H_
diff --git a/ntcore/.styleguide b/ntcore/.styleguide
deleted file mode 100644
index 3785189816..0000000000
--- a/ntcore/.styleguide
+++ /dev/null
@@ -1,33 +0,0 @@
-cHeaderFileInclude {
-  _c\.h$
-}
-
-cppHeaderFileInclude {
-  (?<!_c)\.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  ntcore/doc/
-  ntcore/src/generated
-  .*\.jinja
-
-  src/main/python/
-  src/test/python/
-}
-
-repoRootNameOverride {
-  ntcore
-}
-
-includeGuardRoots {
-  ntcore/src/main/native/cpp/
-  ntcore/src/main/native/include/
-  ntcore/src/test/native/cpp/
-}
diff --git a/ntcoreffi/.styleguide b/ntcoreffi/.styleguide
deleted file mode 100644
index 04cb5665e5..0000000000
--- a/ntcoreffi/.styleguide
+++ /dev/null
@@ -1,20 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-modifiableFileExclude {
-  src/main/native/include/DataLogManager\.h$
-}
-
-repoRootNameOverride {
-  ntcoreffi
-}
-
-includeGuardRoots {
-  ntcoreffi/src/main/native/include/
-}
diff --git a/romiVendordep/.styleguide b/romiVendordep/.styleguide
deleted file mode 100644
index c45f70c9a3..0000000000
--- a/romiVendordep/.styleguide
+++ /dev/null
@@ -1,18 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  src/main/python/
-  src/test/python/
-}
-
-repoRootNameOverride {
-  wpilib
-}
diff --git a/tools/datalogtool/.styleguide b/tools/datalogtool/.styleguide
deleted file mode 100644
index b2658d59ed..0000000000
--- a/tools/datalogtool/.styleguide
+++ /dev/null
@@ -1,20 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  src/main/native/resources/
-  src/main/native/win/datalogtool.ico
-  src/main/native/mac/datalogtool.icns
-}
-
-repoRootNameOverride {
-  datalogtool
-}
diff --git a/tools/outlineviewer/.styleguide b/tools/outlineviewer/.styleguide
deleted file mode 100644
index 89160d2663..0000000000
--- a/tools/outlineviewer/.styleguide
+++ /dev/null
@@ -1,20 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  src/main/native/resources/
-  src/main/native/win/outlineviewer.ico
-  src/main/native/mac/ov.icns
-}
-
-repoRootNameOverride {
-  outlineviewer
-}
diff --git a/tools/sysid/.styleguide b/tools/sysid/.styleguide
deleted file mode 100644
index ab51d222cc..0000000000
--- a/tools/sysid/.styleguide
+++ /dev/null
@@ -1,20 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  src/main/native/resources/
-  src/main/native/win/sysid.ico
-  src/main/native/mac/sysid.icns
-}
-
-repoRootNameOverride {
-  sysid
-}
diff --git a/tools/wpical/.styleguide b/tools/wpical/.styleguide
deleted file mode 100644
index 5ee7c00449..0000000000
--- a/tools/wpical/.styleguide
+++ /dev/null
@@ -1,22 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  src/main/native/assets/
-  src/main/native/resources/
-  src/main/native/thirdparty/
-  src/main/native/win/wpical.ico
-  src/main/native/mac/wpical.icns
-}
-
-repoRootNameOverride {
-  wpical
-}
diff --git a/wpigui/.styleguide b/wpigui/.styleguide
deleted file mode 100644
index a698bdf064..0000000000
--- a/wpigui/.styleguide
+++ /dev/null
@@ -1,25 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  wpigui/src/main/native/cpp/portable-file-dialogs\.cpp$
-  wpigui/src/main/native/include/wpi/gui/portable-file-dialogs\.h$
-}
-
-repoRootNameOverride {
-  wpigui
-}
-
-includeGuardRoots {
-  wpigui/src/main/native/cpp/
-  wpigui/src/main/native/include/
-  wpigui/src/main/native/directx11/
-  wpigui/src/main/native/metal/
-  wpigui/src/main/native/opengl3/
-}
diff --git a/wpilibcExamples/.styleguide b/wpilibcExamples/.styleguide
deleted file mode 100644
index de11fead83..0000000000
--- a/wpilibcExamples/.styleguide
+++ /dev/null
@@ -1,9 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
diff --git a/wpimath/.styleguide b/wpimath/.styleguide
deleted file mode 100644
index cfab55fb50..0000000000
--- a/wpimath/.styleguide
+++ /dev/null
@@ -1,36 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-modifiableFileExclude {
-  \.patch$
-}
-
-generatedFileExclude {
-  src/main/native/include/wpi/units/base\.hpp$
-  src/main/native/include/wpi/units/units\.hpp$
-  src/main/native/thirdparty/
-  src/test/native/cpp/UnitsTest\.cpp$
-  src/generated/main/java/org/wpilib/math/proto
-  src/generated/main/native/cpp
-
-  src/main/python/
-  src/test/python/
-}
-
-repoRootNameOverride {
-  wpimath
-}
-
-includeGuardRoots {
-  wpimath/src/main/native/cpp/
-  wpimath/src/main/native/include/
-  wpimath/src/test/native/cpp/
-}
diff --git a/wpinet/.styleguide b/wpinet/.styleguide
deleted file mode 100644
index 7e12b152f6..0000000000
--- a/wpinet/.styleguide
+++ /dev/null
@@ -1,35 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-generatedFileExclude {
-  src/main/native/thirdparty/
-
-  src/main/native/cpp/http_parser\.cpp$
-  src/main/native/include/wpi/net/http_parser\.hpp$
-  src/main/native/resources/
-  src/main/native/linux/AvahiClient
-
-  src/main/python/
-  src/test/python/
-}
-
-licenseUpdateExclude {
-}
-
-repoRootNameOverride {
-  wpinet
-}
-
-includeGuardRoots {
-  wpinet/src/main/native/cpp/
-  wpinet/src/main/native/include/wpinet/
-  wpinet/src/test/native/cpp/
-}
diff --git a/wpinet/src/main/native/include/wpi/net/EventLoopRunner.hpp b/wpinet/src/main/native/include/wpi/net/EventLoopRunner.hpp
index efdad6b3b6..8f6f34e7bf 100644
--- a/wpinet/src/main/native/include/wpi/net/EventLoopRunner.hpp
+++ b/wpinet/src/main/native/include/wpi/net/EventLoopRunner.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_EVENTLOOPRUNNER_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_EVENTLOOPRUNNER_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -58,5 +57,3 @@ class EventLoopRunner {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_EVENTLOOPRUNNER_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/HttpParser.hpp b/wpinet/src/main/native/include/wpi/net/HttpParser.hpp
index 0a2473ffd1..28d6211de0 100644
--- a/wpinet/src/main/native/include/wpi/net/HttpParser.hpp
+++ b/wpinet/src/main/native/include/wpi/net/HttpParser.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPPARSER_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPPARSER_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -223,5 +222,3 @@ class HttpParser {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPPARSER_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/HttpServerConnection.hpp b/wpinet/src/main/native/include/wpi/net/HttpServerConnection.hpp
index 61bffd0146..47e07b6225 100644
--- a/wpinet/src/main/native/include/wpi/net/HttpServerConnection.hpp
+++ b/wpinet/src/main/native/include/wpi/net/HttpServerConnection.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPSERVERCONNECTION_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPSERVERCONNECTION_HPP_
+#pragma once
 
 #include <memory>
 #include <span>
@@ -151,5 +150,3 @@ class HttpServerConnection {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPSERVERCONNECTION_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/HttpUtil.hpp b/wpinet/src/main/native/include/wpi/net/HttpUtil.hpp
index 797f6fe9eb..cd6fffc8a4 100644
--- a/wpinet/src/main/native/include/wpi/net/HttpUtil.hpp
+++ b/wpinet/src/main/native/include/wpi/net/HttpUtil.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPUTIL_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPUTIL_HPP_
+#pragma once
 
 #include <initializer_list>
 #include <memory>
@@ -460,5 +459,3 @@ inline HttpPathRef HttpPath::drop_front(size_t n) const {
 }
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPUTIL_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/HttpWebSocketServerConnection.hpp b/wpinet/src/main/native/include/wpi/net/HttpWebSocketServerConnection.hpp
index c5bea5d3d8..a4281f4a03 100644
--- a/wpinet/src/main/native/include/wpi/net/HttpWebSocketServerConnection.hpp
+++ b/wpinet/src/main/native/include/wpi/net/HttpWebSocketServerConnection.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPWEBSOCKETSERVERCONNECTION_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPWEBSOCKETSERVERCONNECTION_HPP_
+#pragma once
 
 #include <initializer_list>
 #include <memory>
@@ -122,5 +121,3 @@ class HttpWebSocketServerConnection
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HTTPWEBSOCKETSERVERCONNECTION_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/MimeTypes.hpp b/wpinet/src/main/native/include/wpi/net/MimeTypes.hpp
index 032e9ab9d8..5aeb1432e7 100644
--- a/wpinet/src/main/native/include/wpi/net/MimeTypes.hpp
+++ b/wpinet/src/main/native/include/wpi/net/MimeTypes.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_MIMETYPES_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_MIMETYPES_HPP_
+#pragma once
 
 #include <string_view>
 
@@ -12,5 +11,3 @@ namespace wpi::net {
 std::string_view MimeTypeFromPath(std::string_view path);
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_MIMETYPES_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/NetworkAcceptor.hpp b/wpinet/src/main/native/include/wpi/net/NetworkAcceptor.hpp
index 50ad6e87ed..3b2859c31f 100644
--- a/wpinet/src/main/native/include/wpi/net/NetworkAcceptor.hpp
+++ b/wpinet/src/main/native/include/wpi/net/NetworkAcceptor.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_NETWORKACCEPTOR_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_NETWORKACCEPTOR_HPP_
+#pragma once
 
 #include <memory>
 
@@ -25,5 +24,3 @@ class NetworkAcceptor {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_NETWORKACCEPTOR_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/NetworkStream.hpp b/wpinet/src/main/native/include/wpi/net/NetworkStream.hpp
index c62de14642..007dbbc6ee 100644
--- a/wpinet/src/main/native/include/wpi/net/NetworkStream.hpp
+++ b/wpinet/src/main/native/include/wpi/net/NetworkStream.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_NETWORKSTREAM_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_NETWORKSTREAM_HPP_
+#pragma once
 
 #include <cstddef>
 #include <string_view>
@@ -40,5 +39,3 @@ class NetworkStream {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_NETWORKSTREAM_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/PortForwarder.hpp b/wpinet/src/main/native/include/wpi/net/PortForwarder.hpp
index 6e5bf2c18c..b4f228668f 100644
--- a/wpinet/src/main/native/include/wpi/net/PortForwarder.hpp
+++ b/wpinet/src/main/native/include/wpi/net/PortForwarder.hpp
@@ -2,9 +2,6 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_PORTFORWARDER_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_PORTFORWARDER_HPP_
-
 #pragma once
 
 #include <memory>
@@ -55,5 +52,3 @@ class PortForwarder {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_PORTFORWARDER_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/SocketError.hpp b/wpinet/src/main/native/include/wpi/net/SocketError.hpp
index f102d9fa5f..bb355fa698 100644
--- a/wpinet/src/main/native/include/wpi/net/SocketError.hpp
+++ b/wpinet/src/main/native/include/wpi/net/SocketError.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_SOCKETERROR_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_SOCKETERROR_HPP_
+#pragma once
 
 #include <string>
 
@@ -18,5 +17,3 @@ inline std::string SocketStrerror() {
 }
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_SOCKETERROR_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/UDPClient.hpp b/wpinet/src/main/native/include/wpi/net/UDPClient.hpp
index 95dc8097aa..25da95040d 100644
--- a/wpinet/src/main/native/include/wpi/net/UDPClient.hpp
+++ b/wpinet/src/main/native/include/wpi/net/UDPClient.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UDPCLIENT_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UDPCLIENT_HPP_
+#pragma once
 
 #include <span>
 #include <string>
@@ -47,5 +46,3 @@ class UDPClient {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UDPCLIENT_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/UrlParser.hpp b/wpinet/src/main/native/include/wpi/net/UrlParser.hpp
index 5c10464841..efd84533c1 100644
--- a/wpinet/src/main/native/include/wpi/net/UrlParser.hpp
+++ b/wpinet/src/main/native/include/wpi/net/UrlParser.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_URLPARSER_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_URLPARSER_HPP_
+#pragma once
 
 #include <string_view>
 
@@ -91,5 +90,3 @@ class UrlParser {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_URLPARSER_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/WebServer.hpp b/wpinet/src/main/native/include/wpi/net/WebServer.hpp
index 9e9280c1df..2226d0b0be 100644
--- a/wpinet/src/main/native/include/wpi/net/WebServer.hpp
+++ b/wpinet/src/main/native/include/wpi/net/WebServer.hpp
@@ -2,9 +2,6 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSERVER_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSERVER_HPP_
-
 #pragma once
 
 #include <memory>
@@ -54,5 +51,3 @@ class WebServer {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSERVER_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/WebSocket.hpp b/wpinet/src/main/native/include/wpi/net/WebSocket.hpp
index 4cb8250bc8..863c26b62d 100644
--- a/wpinet/src/main/native/include/wpi/net/WebSocket.hpp
+++ b/wpinet/src/main/native/include/wpi/net/WebSocket.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSOCKET_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSOCKET_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -560,5 +559,3 @@ class WebSocket : public std::enable_shared_from_this<WebSocket> {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSOCKET_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/WebSocketServer.hpp b/wpinet/src/main/native/include/wpi/net/WebSocketServer.hpp
index 6bd82c6697..9e443b99be 100644
--- a/wpinet/src/main/native/include/wpi/net/WebSocketServer.hpp
+++ b/wpinet/src/main/native/include/wpi/net/WebSocketServer.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSOCKETSERVER_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSOCKETSERVER_HPP_
+#pragma once
 
 #include <functional>
 #include <initializer_list>
@@ -186,5 +185,3 @@ class WebSocketServer : public std::enable_shared_from_this<WebSocketServer> {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WEBSOCKETSERVER_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/WorkerThread.hpp b/wpinet/src/main/native/include/wpi/net/WorkerThread.hpp
index 6432161b29..f1526b104f 100644
--- a/wpinet/src/main/native/include/wpi/net/WorkerThread.hpp
+++ b/wpinet/src/main/native/include/wpi/net/WorkerThread.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WORKERTHREAD_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WORKERTHREAD_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -281,5 +280,3 @@ class WorkerThread<R(T...)> final {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_WORKERTHREAD_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/hostname.hpp b/wpinet/src/main/native/include/wpi/net/hostname.hpp
index 3857059319..39d51c7847 100644
--- a/wpinet/src/main/native/include/wpi/net/hostname.hpp
+++ b/wpinet/src/main/native/include/wpi/net/hostname.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HOSTNAME_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HOSTNAME_HPP_
+#pragma once
 
 #include <string>
 #include <string_view>
@@ -17,5 +16,3 @@ namespace wpi::net {
 std::string GetHostname();
 std::string_view GetHostname(wpi::util::SmallVectorImpl<char>& name);
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_HOSTNAME_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/raw_socket_istream.hpp b/wpinet/src/main/native/include/wpi/net/raw_socket_istream.hpp
index f61ab8470f..3fac99f582 100644
--- a/wpinet/src/main/native/include/wpi/net/raw_socket_istream.hpp
+++ b/wpinet/src/main/native/include/wpi/net/raw_socket_istream.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_SOCKET_ISTREAM_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_SOCKET_ISTREAM_HPP_
+#pragma once
 
 #include "wpi/util/raw_istream.hpp"
 
@@ -27,5 +26,3 @@ class raw_socket_istream : public wpi::util::raw_istream {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_SOCKET_ISTREAM_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/raw_socket_ostream.hpp b/wpinet/src/main/native/include/wpi/net/raw_socket_ostream.hpp
index b95bc1d794..a31c0d5e10 100644
--- a/wpinet/src/main/native/include/wpi/net/raw_socket_ostream.hpp
+++ b/wpinet/src/main/native/include/wpi/net/raw_socket_ostream.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_SOCKET_OSTREAM_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_SOCKET_OSTREAM_HPP_
+#pragma once
 
 #include "wpi/util/raw_ostream.hpp"
 
@@ -35,5 +34,3 @@ class raw_socket_ostream : public wpi::util::raw_ostream {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_SOCKET_OSTREAM_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/raw_uv_ostream.hpp b/wpinet/src/main/native/include/wpi/net/raw_uv_ostream.hpp
index b1b783f42e..1c96a9cd50 100644
--- a/wpinet/src/main/native/include/wpi/net/raw_uv_ostream.hpp
+++ b/wpinet/src/main/native/include/wpi/net/raw_uv_ostream.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_UV_OSTREAM_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_UV_OSTREAM_HPP_
+#pragma once
 
 #include <functional>
 #include <span>
@@ -70,5 +69,3 @@ class raw_uv_ostream : public wpi::util::raw_ostream {
 };
 
 }  // namespace wpi::net
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_RAW_UV_OSTREAM_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Async.hpp b/wpinet/src/main/native/include/wpi/net/uv/Async.hpp
index 0ab0080d63..07f15caf83 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Async.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Async.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ASYNC_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ASYNC_HPP_
+#pragma once
 
 #include <memory>
 #include <thread>
@@ -197,5 +196,3 @@ class Async<> final : public HandleImpl<Async<>, uv_async_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ASYNC_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/AsyncFunction.hpp b/wpinet/src/main/native/include/wpi/net/uv/AsyncFunction.hpp
index 696e95497f..fe34405ba6 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/AsyncFunction.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/AsyncFunction.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ASYNCFUNCTION_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ASYNCFUNCTION_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -177,5 +176,3 @@ class AsyncFunction<R(T...)> final
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ASYNCFUNCTION_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Buffer.hpp b/wpinet/src/main/native/include/wpi/net/uv/Buffer.hpp
index a9476faca6..446dd1884f 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Buffer.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Buffer.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_BUFFER_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_BUFFER_HPP_
+#pragma once
 
 #include <cstring>
 #include <initializer_list>
@@ -172,5 +171,3 @@ class SimpleBufferPool {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_BUFFER_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Check.hpp b/wpinet/src/main/native/include/wpi/net/uv/Check.hpp
index e88cc0f94e..afc7a573ce 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Check.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Check.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_CHECK_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_CHECK_HPP_
+#pragma once
 
 #include <memory>
 
@@ -61,5 +60,3 @@ class Check final : public HandleImpl<Check, uv_check_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_CHECK_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Error.hpp b/wpinet/src/main/native/include/wpi/net/uv/Error.hpp
index fc79763391..25a684390a 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Error.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Error.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ERROR_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ERROR_HPP_
+#pragma once
 
 #include <uv.h>
 
@@ -42,5 +41,3 @@ class Error {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_ERROR_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/FsEvent.hpp b/wpinet/src/main/native/include/wpi/net/uv/FsEvent.hpp
index 5365aea7c1..a545195923 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/FsEvent.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/FsEvent.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_FSEVENT_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_FSEVENT_HPP_
+#pragma once
 
 #include <memory>
 #include <string>
@@ -75,5 +74,3 @@ class FsEvent final : public HandleImpl<FsEvent, uv_fs_event_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_FSEVENT_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/GetAddrInfo.hpp b/wpinet/src/main/native/include/wpi/net/uv/GetAddrInfo.hpp
index ce81047cd5..cf1a7e20b4 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/GetAddrInfo.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/GetAddrInfo.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_GETADDRINFO_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_GETADDRINFO_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -116,5 +115,3 @@ inline void GetAddrInfo(const std::shared_ptr<Loop>& loop,
 }
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_GETADDRINFO_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/GetNameInfo.hpp b/wpinet/src/main/native/include/wpi/net/uv/GetNameInfo.hpp
index d915b32771..af636e4910 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/GetNameInfo.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/GetNameInfo.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_GETNAMEINFO_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_GETNAMEINFO_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -223,5 +222,3 @@ inline void GetNameInfo6(const std::shared_ptr<Loop>& loop,
 }
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_GETNAMEINFO_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Handle.hpp b/wpinet/src/main/native/include/wpi/net/uv/Handle.hpp
index 2add8af18d..9a33e77c36 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Handle.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Handle.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_HANDLE_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_HANDLE_HPP_
+#pragma once
 
 #include <cstdlib>
 #include <functional>
@@ -310,5 +309,3 @@ class HandleImpl : public Handle {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_HANDLE_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Idle.hpp b/wpinet/src/main/native/include/wpi/net/uv/Idle.hpp
index edc5c97a36..658d796631 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Idle.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Idle.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_IDLE_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_IDLE_HPP_
+#pragma once
 
 #include <memory>
 
@@ -70,5 +69,3 @@ class Idle final : public HandleImpl<Idle, uv_idle_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_IDLE_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Loop.hpp b/wpinet/src/main/native/include/wpi/net/uv/Loop.hpp
index db5747a362..b2358795b2 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Loop.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Loop.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_LOOP_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_LOOP_HPP_
+#pragma once
 
 #include <atomic>
 #include <chrono>
@@ -264,5 +263,3 @@ class Loop final : public std::enable_shared_from_this<Loop> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_LOOP_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/NetworkStream.hpp b/wpinet/src/main/native/include/wpi/net/uv/NetworkStream.hpp
index 180f4aaebb..9c1493d5cb 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/NetworkStream.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/NetworkStream.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_NETWORKSTREAM_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_NETWORKSTREAM_HPP_
+#pragma once
 
 #include <cstdlib>
 #include <functional>
@@ -149,5 +148,3 @@ class NetworkStreamImpl : public NetworkStream {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_NETWORKSTREAM_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Pipe.hpp b/wpinet/src/main/native/include/wpi/net/uv/Pipe.hpp
index 5d5ac84f94..c9ab2dbac5 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Pipe.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Pipe.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PIPE_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PIPE_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -204,5 +203,3 @@ class PipeConnectReq : public ConnectReq {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PIPE_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Poll.hpp b/wpinet/src/main/native/include/wpi/net/uv/Poll.hpp
index 4688e86c45..906b9575ff 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Poll.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Poll.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_POLL_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_POLL_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -118,5 +117,3 @@ class Poll final : public HandleImpl<Poll, uv_poll_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_POLL_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Prepare.hpp b/wpinet/src/main/native/include/wpi/net/uv/Prepare.hpp
index 415b141d5c..dbf91a01d1 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Prepare.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Prepare.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PREPARE_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PREPARE_HPP_
+#pragma once
 
 #include <memory>
 
@@ -61,5 +60,3 @@ class Prepare final : public HandleImpl<Prepare, uv_prepare_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PREPARE_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Process.hpp b/wpinet/src/main/native/include/wpi/net/uv/Process.hpp
index 01f75bbb45..bd33f2eb27 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Process.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Process.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PROCESS_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PROCESS_HPP_
+#pragma once
 
 #include <initializer_list>
 #include <memory>
@@ -306,5 +305,3 @@ class Process final : public HandleImpl<Process, uv_process_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_PROCESS_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Request.hpp b/wpinet/src/main/native/include/wpi/net/uv/Request.hpp
index b4f8a582e9..9ce6a73998 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Request.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Request.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_REQUEST_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_REQUEST_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -167,5 +166,3 @@ class RequestImpl : public Request {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_REQUEST_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Signal.hpp b/wpinet/src/main/native/include/wpi/net/uv/Signal.hpp
index 9f63cfd64b..97c0b7ac9d 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Signal.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Signal.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_SIGNAL_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_SIGNAL_HPP_
+#pragma once
 
 #include <memory>
 
@@ -75,5 +74,3 @@ class Signal final : public HandleImpl<Signal, uv_signal_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_SIGNAL_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Stream.hpp b/wpinet/src/main/native/include/wpi/net/uv/Stream.hpp
index c9145c161b..0104c0061e 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Stream.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Stream.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_STREAM_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_STREAM_HPP_
+#pragma once
 
 #include <cstdlib>
 #include <functional>
@@ -330,5 +329,3 @@ class StreamImpl : public Stream {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_STREAM_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Tcp.hpp b/wpinet/src/main/native/include/wpi/net/uv/Tcp.hpp
index 39a644e23b..2780f06c82 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Tcp.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Tcp.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TCP_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TCP_HPP_
+#pragma once
 
 #include <chrono>
 #include <functional>
@@ -367,5 +366,3 @@ class TcpConnectReq : public ConnectReq {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TCP_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Timer.hpp b/wpinet/src/main/native/include/wpi/net/uv/Timer.hpp
index 6f6d8f6ca6..3b1bf123e4 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Timer.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Timer.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TIMER_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TIMER_HPP_
+#pragma once
 
 #include <chrono>
 #include <functional>
@@ -140,5 +139,3 @@ class Timer final : public HandleImpl<Timer, uv_timer_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TIMER_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Tty.hpp b/wpinet/src/main/native/include/wpi/net/uv/Tty.hpp
index ecdc23a055..b330896ebb 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Tty.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Tty.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TTY_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TTY_HPP_
+#pragma once
 
 #include <memory>
 #include <utility>
@@ -81,5 +80,3 @@ class Tty final : public StreamImpl<Tty, uv_tty_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_TTY_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Udp.hpp b/wpinet/src/main/native/include/wpi/net/uv/Udp.hpp
index 404b367593..a23f385082 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Udp.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Udp.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_UDP_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_UDP_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -394,5 +393,3 @@ class Udp final : public HandleImpl<Udp, uv_udp_t> {
 };
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_UDP_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/Work.hpp b/wpinet/src/main/native/include/wpi/net/uv/Work.hpp
index 366037cca0..fad2e2e45f 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/Work.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/Work.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_WORK_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_WORK_HPP_
+#pragma once
 
 #include <functional>
 #include <memory>
@@ -89,5 +88,3 @@ inline void QueueWork(const std::shared_ptr<Loop>& loop,
 }
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_WORK_HPP_
diff --git a/wpinet/src/main/native/include/wpi/net/uv/util.hpp b/wpinet/src/main/native/include/wpi/net/uv/util.hpp
index fee1d669e5..81c3088ba7 100644
--- a/wpinet/src/main/native/include/wpi/net/uv/util.hpp
+++ b/wpinet/src/main/native/include/wpi/net/uv/util.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_UTIL_HPP_
-#define WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_UTIL_HPP_
+#pragma once
 
 #include <cstring>
 #include <string_view>
@@ -154,5 +153,3 @@ int NameToAddr(std::string_view ip, in_addr* addr);
 int NameToAddr(std::string_view ip, in6_addr* addr);
 
 }  // namespace wpi::net::uv
-
-#endif  // WPINET_WPINET_SRC_MAIN_NATIVE_INCLUDE_WPI_NET_UV_UTIL_HPP_
diff --git a/wpiutil/.styleguide b/wpiutil/.styleguide
deleted file mode 100644
index 5371065b95..0000000000
--- a/wpiutil/.styleguide
+++ /dev/null
@@ -1,51 +0,0 @@
-cppHeaderFileInclude {
-  \.h$
-  \.hpp$
-  \.inc$
-  \.inl$
-  expected$
-  math$
-  numbers$
-  scope$
-}
-
-cppSrcFileInclude {
-  \.cpp$
-}
-
-modifiableFileExclude {
-  src/main/native/include/wpi/util/MulticastServiceAnnouncer\.h$
-}
-
-generatedFileExclude {
-  src/main/native/thirdparty/
-
-  src/main/python/
-  src/test/python/
-
-  src/main/native/include/wpi/util/fs\.hpp$
-  src/main/native/include/wpi/util/FastQueue\.hpp$
-  src/main/native/cpp/fs\.cpp$
-  src/main/native/resources/
-  src/main/native/windows/StackWalker
-  src/test/native/cpp/llvm/
-  src/test/native/cpp/span/
-  src/test/native/cpp/json/
-  src/generated/test/native/cpp
-}
-
-licenseUpdateExclude {
-  src/main/native/cpp/Base64\.cpp$
-  src/main/native/cpp/sha1\.cpp$
-  src/main/native/include/wpi/util/sha1\.hpp$
-}
-
-repoRootNameOverride {
-  wpiutil
-}
-
-includeGuardRoots {
-  wpiutil/src/main/native/cpp/
-  wpiutil/src/main/native/include/
-  wpiutil/src/test/native/cpp/
-}
diff --git a/wpiutil/src/main/native/include/wpi/util/Base64.hpp b/wpiutil/src/main/native/include/wpi/util/Base64.hpp
index e6271410b4..b5e44c34a9 100644
--- a/wpiutil/src/main/native/include/wpi/util/Base64.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/Base64.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_BASE64_HPP_
-#define WPIUTIL_WPI_UTIL_BASE64_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -14,6 +13,7 @@
 #include <vector>
 
 namespace wpi::util {
+
 template <typename T>
 class SmallVectorImpl;
 class raw_ostream;
@@ -45,5 +45,3 @@ std::string_view Base64Encode(std::span<const uint8_t> plain,
                               SmallVectorImpl<char>& buf);
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_BASE64_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/CallbackManager.hpp b/wpiutil/src/main/native/include/wpi/util/CallbackManager.hpp
index d3a359276a..6442026106 100644
--- a/wpiutil/src/main/native/include/wpi/util/CallbackManager.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/CallbackManager.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_CALLBACKMANAGER_HPP_
-#define WPIUTIL_WPI_UTIL_CALLBACKMANAGER_HPP_
+#pragma once
 
 #include <atomic>
 #include <climits>
@@ -391,5 +390,3 @@ class CallbackManager {
 };
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_CALLBACKMANAGER_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/Demangle.hpp b/wpiutil/src/main/native/include/wpi/util/Demangle.hpp
index b44ba74e64..3348a829e7 100644
--- a/wpiutil/src/main/native/include/wpi/util/Demangle.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/Demangle.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_DEMANGLE_HPP_
-#define WPIUTIL_WPI_UTIL_DEMANGLE_HPP_
+#pragma once
 
 #include <string>
 #include <string_view>
@@ -29,5 +28,3 @@ std::string GetTypeName(const T& type) {
 }
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_DEMANGLE_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/Logger.hpp b/wpiutil/src/main/native/include/wpi/util/Logger.hpp
index 3c6d69ab3e..28642d2cd6 100644
--- a/wpiutil/src/main/native/include/wpi/util/Logger.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/Logger.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_LOGGER_HPP_
-#define WPIUTIL_WPI_UTIL_LOGGER_HPP_
+#pragma once
 
 #include <functional>
 #include <utility>
@@ -90,5 +89,3 @@ class Logger {
   WPI_LOG(inst, ::wpi::util::WPI_LOG_DEBUG4, format __VA_OPT__(, ) __VA_ARGS__)
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_LOGGER_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/RawFrame.h b/wpiutil/src/main/native/include/wpi/util/RawFrame.h
index d4dafa51d8..d5d3d1b2e5 100644
--- a/wpiutil/src/main/native/include/wpi/util/RawFrame.h
+++ b/wpiutil/src/main/native/include/wpi/util/RawFrame.h
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_RAWFRAME_H_
-#define WPIUTIL_WPI_UTIL_RAWFRAME_H_
+#pragma once
 
 #include <stdint.h>
 
@@ -162,5 +161,3 @@ void SetFrameData(JNIEnv* env, jclass rawFrameCls, jobject jframe,
 
 }  // namespace wpi::util
 #endif
-
-#endif  // WPIUTIL_WPI_UTIL_RAWFRAME_H_
diff --git a/wpiutil/src/main/native/include/wpi/util/SafeThread.hpp b/wpiutil/src/main/native/include/wpi/util/SafeThread.hpp
index 536f995e3c..6b7f8c80bd 100644
--- a/wpiutil/src/main/native/include/wpi/util/SafeThread.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/SafeThread.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_SAFETHREAD_HPP_
-#define WPIUTIL_WPI_UTIL_SAFETHREAD_HPP_
+#pragma once
 
 #include <atomic>
 #include <memory>
@@ -141,5 +140,3 @@ class SafeThreadOwner : public detail::SafeThreadOwnerBase {
 };
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_SAFETHREAD_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/StackTrace.hpp b/wpiutil/src/main/native/include/wpi/util/StackTrace.hpp
index ca82ceb832..be727e6518 100644
--- a/wpiutil/src/main/native/include/wpi/util/StackTrace.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/StackTrace.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_STACKTRACE_HPP_
-#define WPIUTIL_WPI_UTIL_STACKTRACE_HPP_
+#pragma once
 
 #include <string>
 
@@ -31,5 +30,3 @@ std::string GetStackTraceDefault(int offset);
 void SetGetStackTraceImpl(std::string (*func)(int offset));
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_STACKTRACE_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/UidVector.hpp b/wpiutil/src/main/native/include/wpi/util/UidVector.hpp
index 3b354e0ca2..41d78aad84 100644
--- a/wpiutil/src/main/native/include/wpi/util/UidVector.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/UidVector.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_UIDVECTOR_HPP_
-#define WPIUTIL_WPI_UTIL_UIDVECTOR_HPP_
+#pragma once
 
 #include <iterator>
 #include <utility>
@@ -155,5 +154,3 @@ class UidVector {
 };
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_UIDVECTOR_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/deprecated.hpp b/wpiutil/src/main/native/include/wpi/util/deprecated.hpp
index 9517a0f8ab..571e1b33ec 100644
--- a/wpiutil/src/main/native/include/wpi/util/deprecated.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/deprecated.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_DEPRECATED_HPP_
-#define WPIUTIL_WPI_UTIL_DEPRECATED_HPP_
+#pragma once
 
 #ifndef WPI_IGNORE_DEPRECATED
 #ifdef __GNUC__
@@ -27,5 +26,3 @@
 #define WPI_UNIGNORE_DEPRECATED
 #endif
 #endif
-
-#endif  // WPIUTIL_WPI_UTIL_DEPRECATED_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/fmt/raw_ostream.hpp b/wpiutil/src/main/native/include/wpi/util/fmt/raw_ostream.hpp
index 77f9528e6e..a80a70a7cd 100644
--- a/wpiutil/src/main/native/include/wpi/util/fmt/raw_ostream.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/fmt/raw_ostream.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_FMT_RAW_OSTREAM_HPP_
-#define WPIUTIL_WPI_UTIL_FMT_RAW_OSTREAM_HPP_
+#pragma once
 
 #include <fmt/format.h>
 
@@ -27,5 +26,3 @@ void print(wpi::util::raw_ostream& os, const S& format_str, Args&&... args) {
 }
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_FMT_RAW_OSTREAM_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/future.hpp b/wpiutil/src/main/native/include/wpi/util/future.hpp
index beca9b5685..f5a876b0c5 100644
--- a/wpiutil/src/main/native/include/wpi/util/future.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/future.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_FUTURE_HPP_
-#define WPIUTIL_WPI_UTIL_FUTURE_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -939,5 +938,3 @@ future<void> detail::FutureThen<void, void>::Create(
 }
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_FUTURE_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/jni_util.hpp b/wpiutil/src/main/native/include/wpi/util/jni_util.hpp
index fb7b05423f..9f2e5c5d2a 100644
--- a/wpiutil/src/main/native/include/wpi/util/jni_util.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/jni_util.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_JNI_UTIL_HPP_
-#define WPIUTIL_WPI_UTIL_JNI_UTIL_HPP_
+#pragma once
 
 #include <jni.h>
 
@@ -978,5 +977,3 @@ struct JExceptionInit {
 };
 
 }  // namespace wpi::util::java
-
-#endif  // WPIUTIL_WPI_UTIL_JNI_UTIL_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/nodiscard.h b/wpiutil/src/main/native/include/wpi/util/nodiscard.h
index f1c280f0fc..d1cfc9431c 100644
--- a/wpiutil/src/main/native/include/wpi/util/nodiscard.h
+++ b/wpiutil/src/main/native/include/wpi/util/nodiscard.h
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_NODISCARD_H_
-#define WPIUTIL_WPI_UTIL_NODISCARD_H_
+#pragma once
 
 // This should only be used on APIs that can be compiled as C or C++. If the API
 // is C++ only, use [[nodiscard]] instead.
@@ -17,5 +16,3 @@
 #endif
 
 #endif
-
-#endif  // WPIUTIL_WPI_UTIL_NODISCARD_H_
diff --git a/wpiutil/src/main/native/include/wpi/util/priority_queue.hpp b/wpiutil/src/main/native/include/wpi/util/priority_queue.hpp
index d3c55ce00e..879c00e628 100644
--- a/wpiutil/src/main/native/include/wpi/util/priority_queue.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/priority_queue.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_PRIORITY_QUEUE_HPP_
-#define WPIUTIL_WPI_UTIL_PRIORITY_QUEUE_HPP_
+#pragma once
 
 #include <algorithm>
 #include <concepts>
@@ -112,5 +111,3 @@ class priority_queue {
 };
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_PRIORITY_QUEUE_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/raw_istream.hpp b/wpiutil/src/main/native/include/wpi/util/raw_istream.hpp
index ca87b6ce75..803a69f410 100644
--- a/wpiutil/src/main/native/include/wpi/util/raw_istream.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/raw_istream.hpp
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_RAW_ISTREAM_HPP_
-#define WPIUTIL_WPI_UTIL_RAW_ISTREAM_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -172,5 +171,3 @@ class raw_fd_istream : public raw_istream {
 };
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_RAW_ISTREAM_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/sha1.hpp b/wpiutil/src/main/native/include/wpi/util/sha1.hpp
index 855da55818..82a37d6c4a 100644
--- a/wpiutil/src/main/native/include/wpi/util/sha1.hpp
+++ b/wpiutil/src/main/native/include/wpi/util/sha1.hpp
@@ -17,8 +17,7 @@
         -- Eugene Hopkinson <slowriot at voxelstorm dot com>
 */
 
-#ifndef WPIUTIL_WPI_UTIL_SHA1_HPP_
-#define WPIUTIL_WPI_UTIL_SHA1_HPP_
+#pragma once
 
 #include <stdint.h>
 
@@ -48,5 +47,3 @@ class SHA1 {
 };
 
 }  // namespace wpi::util
-
-#endif  // WPIUTIL_WPI_UTIL_SHA1_HPP_
diff --git a/wpiutil/src/main/native/include/wpi/util/timestamp.h b/wpiutil/src/main/native/include/wpi/util/timestamp.h
index 2f6df2f32b..5bbea915f8 100644
--- a/wpiutil/src/main/native/include/wpi/util/timestamp.h
+++ b/wpiutil/src/main/native/include/wpi/util/timestamp.h
@@ -2,8 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#ifndef WPIUTIL_WPI_UTIL_TIMESTAMP_H_
-#define WPIUTIL_WPI_UTIL_TIMESTAMP_H_
+#pragma once
 
 #include <stdint.h>
 
@@ -85,5 +84,3 @@ uint64_t GetSystemTime();
 
 }  // namespace wpi::util
 #endif
-
-#endif  // WPIUTIL_WPI_UTIL_TIMESTAMP_H_