diff --git a/.bazelignore b/.bazelignore
new file mode 100644
index 00000000000..792570baee3
--- /dev/null
+++ b/.bazelignore
@@ -0,0 +1,20 @@
+build_cmake
+build-cmake
+
+# Auto generated by vscode
+apriltag/bin
+cameraserver/bin
+cameraserver/multiCameraServer/bin
+cscore/bin
+fieldImages/bin
+hal/bin
+developerRobot/bin
+ntcore/bin
+romiVendordep/bin
+wpilibNewCommands/bin
+wpilibj/bin
+wpimath/bin
+wpinet/bin
+wpiutil/bin
+wpiunits/bin
+xrpVendordep/bin
diff --git a/.bazelrc b/.bazelrc
new file mode 100644
index 00000000000..051ff924bd8
--- /dev/null
+++ b/.bazelrc
@@ -0,0 +1,51 @@
+try-import %workspace%/bazel_auth.rc
+try-import %workspace%/user.bazelrc
+
+common --noenable_bzlmod
+
+build --java_language_version=17
+build --java_runtime_version=roboriojdk_17
+build --tool_java_language_version=17
+build --tool_java_runtime_version=remotejdk_17
+
+test --test_output=errors
+test --test_verbose_timeout_warnings
+
+import shared/bazel/compiler_flags/sanitizers.rc
+import shared/bazel/compiler_flags/base_linux_flags.rc
+import shared/bazel/compiler_flags/linux_flags.rc
+import shared/bazel/compiler_flags/osx_flags.rc
+import shared/bazel/compiler_flags/roborio_flags.rc
+import shared/bazel/compiler_flags/windows_flags.rc
+import shared/bazel/compiler_flags/coverage_flags.rc
+
+build:build_java --test_tag_filters=allwpilib-build-java --build_tag_filters=allwpilib-build-java
+build:build_cpp --test_tag_filters=+allwpilib-build-cpp --build_tag_filters=+allwpilib-build-cpp
+build:no_example --test_tag_filters=-wpi-example --build_tag_filters=-wpi-example
+test:no_example --test_tag_filters=-wpi-example --build_tag_filters=-wpi-example
+
+# Build Buddy Cache Setup
+build:build_buddy --bes_results_url=https://app.buildbuddy.io/invocation/
+build:build_buddy --bes_backend=grpcs://remote.buildbuddy.io
+build:build_buddy --remote_cache=grpcs://remote.buildbuddy.io
+build:build_buddy --remote_timeout=3600
+
+# Additional suggestions from buildbuddy for speed
+build:build_buddy --experimental_remote_cache_compression
+build:build_buddy --experimental_remote_cache_compression_threshold=100
+build:build_buddy --noslim_profile
+build:build_buddy --experimental_profile_include_target_label
+build:build_buddy --experimental_profile_include_primary_output
+build:build_buddy --nolegacy_important_outputs
+
+build:build_buddy_readonly --noremote_upload_local_results
+
+# This config should be used locally. It downloads more than the CI version
+build:remote_user --config=build_buddy
+build:remote_user --config=build_buddy_readonly
+build:remote_user --remote_download_toplevel
+
+build:ci --config=build_buddy
+build:ci --remote_download_minimal
+
+build --build_metadata=REPO_URL=https://github.com/wpilibsuite/allwpilib.git
diff --git a/.bazelversion b/.bazelversion
new file mode 100644
index 00000000000..643916c03f1
--- /dev/null
+++ b/.bazelversion
@@ -0,0 +1 @@
+7.3.1
diff --git a/.github/actions/setup-build-buddy/action.yml b/.github/actions/setup-build-buddy/action.yml
new file mode 100644
index 00000000000..423398a0534
--- /dev/null
+++ b/.github/actions/setup-build-buddy/action.yml
@@ -0,0 +1,27 @@
+name: 'Setup BuildBuddy acache'
+description: 'Sets up the build buddy cache to be readonly / writing based on the presence of environment variables'
+
+inputs:
+  token:
+    description: 'Build Buddy API token'
+
+runs:
+  using: "composite"
+  steps:
+    - name: Setup without key
+      env:
+        API_KEY: ${{ inputs.token }}
+      if: ${{ env.API_KEY == '' }}
+      shell: bash
+      run: |
+          echo "No API key secret detected, will setup readonly cache"
+          echo "build:ci --config=build_buddy_readonly" > bazel_auth.rc
+
+    - name: Set with key
+      env:
+        API_KEY: ${{ inputs.token }}
+      if: ${{ env.API_KEY != '' }}
+      shell: bash
+      run: |
+          echo "API Key detected!"
+          echo "build:build_buddy --remote_header=x-buildbuddy-api-key=${{ env.API_KEY }}" > bazel_auth.rc
diff --git a/.github/workflows/bazel.yml b/.github/workflows/bazel.yml
new file mode 100644
index 00000000000..98eb166b837
--- /dev/null
+++ b/.github/workflows/bazel.yml
@@ -0,0 +1,149 @@
+name: Bazel
+
+on: [pull_request, push]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-windows:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { name: "Windows (native)",             os: windows-2022, action: "test",  config: "--config=windows",     }
+          - { name: "Windows (arm)",                os: windows-2022, action: "build", config: "--config=windows_arm", }
+          - { name: "Windows (roborio)",            os: windows-2022, action: "build", config: "--config=roborio",     }
+
+    name: "Build ${{ matrix.name }}"
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: 17
+          architecture: x64
+
+      - id: Setup_build_buddy
+        uses: ./.github/actions/setup-build-buddy
+        with:
+          token: ${{ secrets.BUILDBUDDY_API_KEY }}
+
+      - name: Build Release
+        run: bazel --output_user_root=C:\\bazelroot ${{ matrix.action }} -k ...   --config=ci -c opt ${{ matrix.config }} --verbose_failures
+        shell: bash
+
+      - name: Build Debug
+        run: bazel --output_user_root=C:\\bazelroot ${{ matrix.action }} -k ...   --config=ci -c dbg ${{ matrix.config }} --verbose_failures
+        shell: bash
+
+  build-mac:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { name: "Mac (native)",            os: macos-14,   action: "test",  config: "--config=macos",      }
+          - { name: "Mac (roborio)",           os: macos-14,   action: "build", config: "--config=roborio",  }
+
+    name: "${{ matrix.name }}"
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+
+      - id: Setup_build_buddy
+        uses: ./.github/actions/setup-build-buddy
+        with:
+          token: ${{ secrets.BUILDBUDDY_API_KEY }}
+
+      - name: Build Release
+        run: bazel ${{ matrix.action }} -k ...   --config=ci -c opt ${{ matrix.config }} --nojava_header_compilation --verbose_failures
+        shell: bash
+
+      - name: Build Debug
+        run: bazel ${{ matrix.action }} -k ...   --config=ci -c dbg ${{ matrix.config }} --nojava_header_compilation --verbose_failures
+        shell: bash
+
+  build-linux:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { name: "Linux (native)",  os: ubuntu-22.04,   action: "test",  config: "--config=linux",    }
+          - { name: "Linux (roborio)", os: ubuntu-22.04,   action: "build", config: "--config=roborio",  }
+    name: "${{ matrix.name }}"
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+      - uses: bazelbuild/setup-bazelisk@v3
+
+      - id: Setup_build_buddy
+        uses: ./.github/actions/setup-build-buddy
+        with:
+          token: ${{ secrets.BUILDBUDDY_API_KEY }}
+
+      - name: Build and Test Release
+        run: bazel ${{ matrix.action }} ... --config=ci -c opt ${{ matrix.config }} -k --verbose_failures
+
+      - name: Build and Test Debug
+        run: bazel ${{ matrix.action }} ... --config=ci -c dbg ${{ matrix.config }} -k --verbose_failures
+
+  build-sanitizers:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - config: "asan"
+          - config: "ubsan"
+    runs-on: ubuntu-22.04
+    name: "Sanitizer ${{ matrix.config }}"
+    steps:
+      - uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+      - uses: bazelbuild/setup-bazelisk@v3
+
+      - id: Setup_build_buddy
+        uses: ./.github/actions/setup-build-buddy
+        with:
+          token: ${{ secrets.BUILDBUDDY_API_KEY }}
+
+      - name: Build and Test
+        run: bazel test  -k --config=ci --config=linux --config=${{ matrix.config }} //...
+
+  buildifier:
+    name: "buildifier"
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Set up Go 1.15.x
+        uses: actions/setup-go@v5
+        with:
+          go-version: 1.15.x
+        id: go
+
+      - name: Install Buildifier
+        run: |
+          cd $(mktemp -d)
+          GO111MODULE=on go get github.com/bazelbuild/buildtools/buildifier@6.0.0
+
+      - uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+
+      - name: Run buildifier
+        run: buildifier -warnings all --lint=fix -r .
+
+      - name: Check Output
+        run: git --no-pager diff --exit-code HEAD
+
+      - name: Generate diff
+        run: git diff HEAD > bazel-lint-fixes.patch
+        if: ${{ failure() }}
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.platform }}-bazel-lint-fixes
+          path: bazel-lint-fixes.patch
+        if: ${{ failure() }}
diff --git a/.github/workflows/upstream-utils.yml b/.github/workflows/upstream-utils.yml
index bd8ebb75a06..c9cd4d681c1 100644
--- a/.github/workflows/upstream-utils.yml
+++ b/.github/workflows/upstream-utils.yml
@@ -133,4 +133,4 @@ jobs:
       - name: Add untracked files to index so they count as changes
         run: git add -A
       - name: Check output
-        run: git --no-pager diff --exit-code HEAD
+        run: git --no-pager diff --exit-code HEAD ':!*.bazel'
diff --git a/.gitignore b/.gitignore
index 333895f9f39..ff4b8ff2265 100644
--- a/.gitignore
+++ b/.gitignore
@@ -249,6 +249,7 @@ imgui.ini
 /bazel-*
 user.bazelrc
 coverage_report/
+bazel_auth.rc
 
 # ctest
 /Testing/
diff --git a/README-Bazel.md b/README-Bazel.md
new file mode 100644
index 00000000000..2a3bb45b756
--- /dev/null
+++ b/README-Bazel.md
@@ -0,0 +1,25 @@
+# WPILib Bazel Support
+
+WPILib is normally built with Gradle, but [Bazel](https://www.bazel.build/) can also be used to increase development speed due to the superior caching ability and the ability to use remote caching and remote execution (on select platforms)
+
+
+## Prerequisites
+- Install [Bazelisk](https://github.com/bazelbuild/bazelisk/releases) and add it to your path. Bazelisk is a wrapper that will download the correct version of bazel specified in the repository. Note: You can alias/rename the binary to `bazel` if you want to keep the familiar `bazel build` vs `bazelisk build` syntax.
+
+## Building
+To build the entire repository, simply run `bazel build //...`. To run all of the unit tests, run `bazel test //...`
+Other examples:
+- `bazel build //wpimath/...` - Builds every target in the wpimath folder
+- `bazel test //wpiutil:wpiutil-cpp-test` - Runs only the cpp test target in the wpiutil folder
+- `bazel coverage //wpiutil/...` - (*Nix only) - Runs a code coverage report for both C++ and Java on all the targets under wpiutil
+
+## User settings
+When invoking bazel, it will check if `user.bazelrc` exists for additional, user specified flags. You can use these settings to do things like always ignore buildin a specific folder, or limiting the CPU/RAM usage during a build.
+Examples:
+- `build --build_tag_filters=-wpi-example` - Do not build any targets tagged with `wpi-example` (Currently all of the targets in wpilibcExamples and wpilibjExamples contain this tag)
+- `build -c opt` - Always build optimized targets. The default compiler flags were chosen to build as fast as possible, and thus don't contain many optimizations
+- `build -k` - `-k` is analogous to the MAKE flag `--keep-going`, so the build will not stop on the first error.
+- ```
+  build --local_ram_resources=HOST_RAM*.5 # Don't use more than half my RAM when building
+  build --local_cpu_resources=HOST_CPUS-1 # Leave one core alone
+  ```
diff --git a/WORKSPACE b/WORKSPACE
new file mode 100644
index 00000000000..602b2ed4297
--- /dev/null
+++ b/WORKSPACE
@@ -0,0 +1,100 @@
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+# Download Extra java rules
+http_archive(
+    name = "rules_jvm_external",
+    sha256 = "08ea921df02ffe9924123b0686dc04fd0ff875710bfadb7ad42badb931b0fd50",
+    strip_prefix = "rules_jvm_external-6.1",
+    url = "https://github.com/bazelbuild/rules_jvm_external/releases/download/6.1/rules_jvm_external-6.1.tar.gz",
+)
+
+load("@rules_jvm_external//:repositories.bzl", "rules_jvm_external_deps")
+
+rules_jvm_external_deps()
+
+load("@rules_jvm_external//:defs.bzl", "maven_install")
+
+maven_artifacts = [
+    "org.ejml:ejml-simple:0.43.1",
+    "com.fasterxml.jackson.core:jackson-annotations:2.15.2",
+    "com.fasterxml.jackson.core:jackson-core:2.15.2",
+    "com.fasterxml.jackson.core:jackson-databind:2.15.2",
+    "us.hebi.quickbuf:quickbuf-runtime:1.3.3",
+    "com.google.code.gson:gson:2.10.1",
+]
+
+maven_install(
+    name = "maven",
+    artifacts = maven_artifacts,
+    repositories = [
+        "https://repo1.maven.org/maven2",
+        "https://frcmaven.wpi.edu/artifactory/release/",
+    ],
+)
+
+# Download toolchains
+http_archive(
+    name = "rules_bzlmodrio_toolchains",
+    sha256 = "2ef1cafce7f4fd4e909bb5de8b0dc771a934646afd55d5f100ff31f6b500df98",
+    url = "https://github.com/wpilibsuite/rules_bzlmodRio_toolchains/releases/download/2024-1.bcr1/rules_bzlmodRio_toolchains-2024-1.bcr1.tar.gz",
+)
+
+load("@rules_bzlmodrio_toolchains//:maven_deps.bzl", "setup_legacy_setup_toolchains_dependencies")
+
+setup_legacy_setup_toolchains_dependencies()
+
+load("@rules_bzlmodrio_toolchains//toolchains:load_toolchains.bzl", "load_toolchains")
+
+load_toolchains()
+
+#
+http_archive(
+    name = "rules_bzlmodrio_jdk",
+    sha256 = "a00d5fa971fbcad8a17b1968cdc5350688397035e90b0cb94e040d375ecd97b4",
+    url = "https://github.com/wpilibsuite/rules_bzlmodRio_jdk/releases/download/17.0.8.1-1/rules_bzlmodRio_jdk-17.0.8.1-1.tar.gz",
+)
+
+load("@rules_bzlmodrio_jdk//:maven_deps.bzl", "setup_legacy_setup_jdk_dependencies")
+
+setup_legacy_setup_jdk_dependencies()
+
+register_toolchains(
+    "@local_roborio//:macos",
+    "@local_roborio//:linux",
+    "@local_roborio//:windows",
+    "@local_raspi_32//:macos",
+    "@local_raspi_32//:linux",
+    "@local_raspi_32//:windows",
+    "@local_bullseye_32//:macos",
+    "@local_bullseye_32//:linux",
+    "@local_bullseye_32//:windows",
+    "@local_bullseye_64//:macos",
+    "@local_bullseye_64//:linux",
+    "@local_bullseye_64//:windows",
+)
+
+setup_legacy_setup_jdk_dependencies()
+
+http_archive(
+    name = "bzlmodrio-ni",
+    sha256 = "197fceac88bf44fb8427d5e000b0083118d3346172dd2ad31eccf83a5e61b3ce",
+    url = "https://github.com/wpilibsuite/bzlmodRio-ni/releases/download/2025.0.0/bzlmodRio-ni-2025.0.0.tar.gz",
+)
+
+load("@bzlmodrio-ni//:maven_cpp_deps.bzl", "setup_legacy_bzlmodrio_ni_cpp_dependencies")
+
+setup_legacy_bzlmodrio_ni_cpp_dependencies()
+
+http_archive(
+    name = "bzlmodrio-opencv",
+    sha256 = "5314cce05b49451a46bf3e3140fc401342e53d5f3357612ed4473e59bb616cba",
+    url = "https://github.com/wpilibsuite/bzlmodRio-opencv/releases/download/2024.4.8.0-4.bcr1/bzlmodRio-opencv-2024.4.8.0-4.bcr1.tar.gz",
+)
+
+load("@bzlmodrio-opencv//:maven_cpp_deps.bzl", "setup_legacy_bzlmodrio_opencv_cpp_dependencies")
+
+setup_legacy_bzlmodrio_opencv_cpp_dependencies()
+
+load("@bzlmodrio-opencv//:maven_java_deps.bzl", "setup_legacy_bzlmodrio_opencv_java_dependencies")
+
+setup_legacy_bzlmodrio_opencv_java_dependencies()
diff --git a/cameraserver/BUILD.bazel b/cameraserver/BUILD.bazel
new file mode 100644
index 00000000000..542f0f3c961
--- /dev/null
+++ b/cameraserver/BUILD.bazel
@@ -0,0 +1,32 @@
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+
+java_library(
+    name = "cameraserver-java",
+    srcs = glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "//cscore:cscore-java",
+        "//hal:hal-java",
+        "//ntcore:networktables-java",
+        "//wpimath:wpimath-java",
+        "//wpinet:wpinet-java",
+        "//wpiutil:wpiutil-java",
+        "@bzlmodrio-opencv//libraries/java/opencv",
+    ],
+)
+
+cc_binary(
+    name = "DevMain-Cpp",
+    srcs = ["src/dev/native/cpp/main.cpp"],
+    deps = [
+    ],
+)
+
+java_binary(
+    name = "DevMain-Java",
+    srcs = ["src/dev/java/edu/wpi/first/cameraserver/DevMain.java"],
+    main_class = "edu.wpi.first.cameraserver.DevMain",
+    deps = [
+    ],
+)
diff --git a/cameraserver/multiCameraServer/BUILD.bazel b/cameraserver/multiCameraServer/BUILD.bazel
new file mode 100644
index 00000000000..470e9c5bce4
--- /dev/null
+++ b/cameraserver/multiCameraServer/BUILD.bazel
@@ -0,0 +1,16 @@
+load("@rules_java//java:defs.bzl", "java_binary")
+
+java_binary(
+    name = "multiCameraServer-java",
+    srcs = ["src/main/java/edu/wpi/Main.java"],
+    main_class = "edu.wpi.Main",
+    deps = [
+        "//cameraserver:cameraserver-java",
+        "//cscore:cscore-java",
+        "//hal:hal-java",
+        "//ntcore:networktables-java",
+        "//wpimath:wpimath-java",
+        "//wpiutil:wpiutil-java",
+        "@maven//:com_google_code_gson_gson",
+    ],
+)
diff --git a/cscore/BUILD.bazel b/cscore/BUILD.bazel
new file mode 100644
index 00000000000..a2470f8afe1
--- /dev/null
+++ b/cscore/BUILD.bazel
@@ -0,0 +1,21 @@
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+
+java_library(
+    name = "cscore-java",
+    srcs = glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "//wpiutil:wpiutil-java",
+        "@bzlmodrio-opencv//libraries/java/opencv",
+    ],
+)
+
+java_binary(
+    name = "DevMain-Java",
+    srcs = ["src/dev/java/edu/wpi/first/cscore/DevMain.java"],
+    main_class = "edu.wpi.first.cscore.DevMain",
+    deps = [
+        ":cscore-java",
+        "//wpiutil:wpiutil-java",
+    ],
+)
diff --git a/hal/BUILD.bazel b/hal/BUILD.bazel
new file mode 100644
index 00000000000..340a74c65e0
--- /dev/null
+++ b/hal/BUILD.bazel
@@ -0,0 +1,91 @@
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+
+cc_library(
+    name = "generated_cc_headers",
+    hdrs = glob(["src/generated/main/native/include/**"]),
+    includes = ["src/generated/main/native/include"],
+    strip_include_prefix = "src/generated/main/native/include",
+    visibility = ["//hal:__subpackages__"],
+)
+
+filegroup(
+    name = "generated_java",
+    srcs = glob(["src/generated/main/java/**/*.java"]),
+    visibility = ["//hal:__subpackages__"],
+)
+
+ATHENA_SRCS = glob(["src/main/native/athena/**"])
+
+ATHENA_DEPS = ["@bzlmodrio-ni//libraries/cpp/ni:shared"]
+
+SIM_SRCS = glob(["src/main/native/sim/**"])
+
+SIM_DEPS = []
+
+HAL_DEPS = select({
+    "@rules_bzlmodrio_toolchains//constraints/is_roborio:roborio": ATHENA_DEPS,
+    "//conditions:default": SIM_DEPS,
+})
+
+filegroup(
+    name = "platform-srcs",
+    srcs = select({
+        "@rules_bzlmodrio_toolchains//constraints/is_roborio:roborio": ATHENA_SRCS,
+        "//conditions:default": SIM_SRCS,
+    }),
+)
+
+cc_library(
+    name = "wpiHal.static",
+    srcs = [":platform-srcs"] + glob(
+        ["src/main/native/cpp/**"],
+        exclude = ["src/main/native/cpp/jni/**"],
+    ),
+    hdrs = glob(["src/main/native/include/**/*"]),
+    includes = ["src/main/native/include"],
+    strip_include_prefix = "src/main/native/include",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":generated_cc_headers",
+        "//wpiutil:wpiutil.static",
+    ] + HAL_DEPS,
+)
+
+java_library(
+    name = "hal-java",
+    srcs = [":generated_java"] + glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "//wpiutil:wpiutil-java",
+    ],
+)
+
+cc_test(
+    name = "hal-cpp-test",
+    size = "small",
+    srcs = glob([
+        "src/test/native/**/*.cpp",
+        "src/test/native/**/*.h",
+    ]),
+    deps = [
+        ":wpiHal.static",
+        "//thirdparty/googletest:googletest.static",
+    ],
+)
+
+cc_binary(
+    name = "DevMain-Cpp",
+    srcs = ["src/dev/native/cpp/main.cpp"],
+    deps = [
+        ":wpiHal.static",
+    ],
+)
+
+java_binary(
+    name = "DevMain-Java",
+    srcs = ["src/dev/java/edu/wpi/first/hal/DevMain.java"],
+    main_class = "edu.wpi.first.hal.DevMain",
+    deps = [
+    ],
+)
diff --git a/ntcore/BUILD.bazel b/ntcore/BUILD.bazel
new file mode 100644
index 00000000000..1156cff691e
--- /dev/null
+++ b/ntcore/BUILD.bazel
@@ -0,0 +1,92 @@
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+
+cc_library(
+    name = "generated_cc_headers",
+    hdrs = glob(["src/generated/main/native/include/**"]),
+    includes = ["src/generated/main/native/include"],
+    strip_include_prefix = "src/generated/main/native/include",
+    visibility = ["//ntcore:__subpackages__"],
+)
+
+filegroup(
+    name = "generated_cc_source",
+    srcs = glob(
+        ["src/generated/main/native/cpp/**"],
+        exclude = ["src/generated/main/native/cpp/jni/**"],
+    ),
+    visibility = ["//ntcore:__subpackages__"],
+)
+
+filegroup(
+    name = "generated_java",
+    srcs = glob(["src/generated/main/java/**/*.java"]),
+    visibility = ["//ntcore:__subpackages__"],
+)
+
+cc_library(
+    name = "ntcore.static",
+    srcs = glob(
+        ["src/main/native/cpp/**"],
+        exclude = ["src/main/native/cpp/jni/**"],
+    ) + [":generated_cc_source"],
+    hdrs = glob(["src/main/native/include/**/*"]),
+    includes = [
+        "src/main/native/cpp",
+        "src/main/native/include",
+    ],
+    strip_include_prefix = "src/main/native/include",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":generated_cc_headers",
+        "//wpinet:wpinet.static",
+        "//wpiutil:wpiutil.static",
+    ],
+)
+
+java_library(
+    name = "networktables-java",
+    srcs = glob(["src/main/java/**/*.java"]) + [":generated_java"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//wpiutil:wpiutil-java",
+        "@maven//:us_hebi_quickbuf_quickbuf_runtime",
+    ],
+)
+
+cc_test(
+    name = "ntcore-cpp-test",
+    size = "small",
+    srcs = glob([
+        "src/test/native/**/*.cpp",
+        "src/test/native/**/*.h",
+    ]),
+    tags = [
+        "exclusive",
+        "no-asan",
+        "no-tsan",
+    ],
+    deps = [
+        ":ntcore.static",
+        "//thirdparty/googletest:googletest.static",
+        "//wpiutil:wpiutil-testlib",
+    ],
+)
+
+cc_binary(
+    name = "DevMain-Cpp",
+    srcs = ["src/dev/native/cpp/main.cpp"],
+    deps = [
+        ":ntcore.static",
+    ],
+)
+
+java_binary(
+    name = "DevMain-Java",
+    srcs = ["src/dev/java/edu/wpi/first/ntcore/DevMain.java"],
+    main_class = "edu.wpi.first.ntcore.DevMain",
+    deps = [
+        "networktables-java",
+        "//wpiutil:wpiutil-java",
+    ],
+)
diff --git a/shared/bazel/compiler_flags/base_linux_flags.rc b/shared/bazel/compiler_flags/base_linux_flags.rc
new file mode 100644
index 00000000000..a49b0f14587
--- /dev/null
+++ b/shared/bazel/compiler_flags/base_linux_flags.rc
@@ -0,0 +1,28 @@
+
+###############################
+# Linux Common
+###############################
+
+# C++ only
+build:base_linux --cxxopt=-std=c++20
+build:base_linux --cxxopt=-Wformat=2
+build:base_linux --cxxopt=-pedantic
+build:base_linux --cxxopt=-Wno-psabi
+build:base_linux --cxxopt=-Wno-unused-parameter
+build:base_linux --cxxopt=-fPIC
+build:base_linux --cxxopt=-pthread
+
+# C Only
+build:base_linux --conlyopt=-Wformat=2
+build:base_linux --conlyopt=-pedantic
+build:base_linux --conlyopt=-Wno-psabi
+build:base_linux --conlyopt=-Wno-unused-parameter
+build:base_linux --conlyopt=-fPIC
+build:base_linux --conlyopt=-pthread
+
+# Linker
+build:base_linux --linkopt=-rdynamic
+build:base_linux --linkopt=-pthread
+build:base_linux --linkopt=-ldl
+build:base_linux --linkopt=-latomic
+build:base_linux --linkopt=-Wl,-rpath,'$ORIGIN'
diff --git a/shared/bazel/compiler_flags/coverage_flags.rc b/shared/bazel/compiler_flags/coverage_flags.rc
new file mode 100644
index 00000000000..0f0a02c470b
--- /dev/null
+++ b/shared/bazel/compiler_flags/coverage_flags.rc
@@ -0,0 +1,5 @@
+
+coverage --combined_report=lcov
+coverage --build_tests_only
+coverage --cache_test_results=no
+coverage --coverage_report_generator=@bazel_tools//tools/test/CoverageOutputGenerator/java/com/google/devtools/coverageoutputgenerator:Main
diff --git a/shared/bazel/compiler_flags/linux_flags.rc b/shared/bazel/compiler_flags/linux_flags.rc
new file mode 100644
index 00000000000..0a19c1d73d1
--- /dev/null
+++ b/shared/bazel/compiler_flags/linux_flags.rc
@@ -0,0 +1,14 @@
+
+
+###############################
+# Linux
+###############################
+build:linux --config=base_linux
+
+# Warning level
+build:linux --copt=-Wall
+build:linux --copt=-Wextra
+build:linux --copt=-Werror
+
+# Not in nativetools
+build:linux --cxxopt=-Wno-deprecated-enum-enum-conversion
diff --git a/shared/bazel/compiler_flags/osx_flags.rc b/shared/bazel/compiler_flags/osx_flags.rc
new file mode 100644
index 00000000000..da12307993e
--- /dev/null
+++ b/shared/bazel/compiler_flags/osx_flags.rc
@@ -0,0 +1,44 @@
+
+# Warning level
+build:macos --copt=-Wall
+build:macos --copt=-Wextra
+build:macos --copt=-Werror
+
+
+# C++ only
+build:macos --cxxopt=-std=c++20
+build:macos --cxxopt=-pedantic
+build:macos --cxxopt=-fPIC
+build:macos --cxxopt=-Wno-unused-parameter
+build:macos --cxxopt=-Wno-error=deprecated-enum-enum-conversion
+build:macos --cxxopt=-Wno-missing-field-initializers
+build:macos --cxxopt=-Wno-unused-private-field
+build:macos --cxxopt=-Wno-unused-const-variable
+build:macos --cxxopt=-Wno-error=c11-extensions
+build:macos --cxxopt=-pthread
+build:macos --cxxopt=-Wno-deprecated-anon-enum-enum-conversion
+
+# C only
+build:macos --conlyopt=-pedantic
+build:macos --conlyopt=-fPIC
+build:macos --conlyopt=-Wno-unused-parameter
+build:macos --conlyopt=-Wno-missing-field-initializers
+build:macos --conlyopt=-Wno-unused-private-field
+build:macos --conlyopt=-Wno-fixed-enum-extension"
+
+
+build:macos --linkopt=-framework
+build:macos --linkopt=CoreFoundation
+build:macos --linkopt=-framework
+build:macos --linkopt=AVFoundation
+build:macos --linkopt=-framework
+build:macos --linkopt=Foundation
+build:macos --linkopt=-framework
+build:macos --linkopt=CoreMedia
+build:macos --linkopt=-framework
+build:macos --linkopt=CoreVideo
+build:macos --linkopt=-headerpad_max_install_names
+build:macos --linkopt=-Wl,-rpath,'@loader_path'"
+
+# Things not in nativetools
+build:macos --copt=-Wno-shorten-64-to-32
diff --git a/shared/bazel/compiler_flags/roborio_flags.rc b/shared/bazel/compiler_flags/roborio_flags.rc
new file mode 100644
index 00000000000..691da8d5e6e
--- /dev/null
+++ b/shared/bazel/compiler_flags/roborio_flags.rc
@@ -0,0 +1,16 @@
+
+###############################
+# Roborio
+###############################
+build:roborio --config=base_linux
+
+build:roborio --platforms=@rules_bzlmodrio_toolchains//platforms/roborio
+build:roborio --build_tag_filters=-no-roborio
+build:roborio --features=compiler_param_file
+build:roborio --platform_suffix=roborio
+build:roborio --incompatible_enable_cc_toolchain_resolution
+
+build:roborio --cxxopt=-Wno-error=deprecated-declarations
+
+# Extra 11
+build:roborio --cxxopt=-Wno-error=deprecated-enum-enum-conversion
diff --git a/shared/bazel/compiler_flags/sanitizers.rc b/shared/bazel/compiler_flags/sanitizers.rc
new file mode 100644
index 00000000000..739a568a3fc
--- /dev/null
+++ b/shared/bazel/compiler_flags/sanitizers.rc
@@ -0,0 +1,27 @@
+# ASAN (address sanitizer) config
+build:asan --copt -fsanitize=address
+build:asan --copt -fno-omit-frame-pointer
+build:asan --linkopt -fsanitize=address
+build:asan --build_tests_only
+build:asan --test_tag_filters=-no-asan
+
+# TSAN (thread sanitizer)
+build:tsan --strip=never
+build:tsan --copt -fsanitize=thread
+build:tsan --copt -DTHREAD_SANITIZER
+build:tsan --copt -DDYNAMIC_ANNOTATIONS_ENABLED=1
+build:tsan --copt -DDYNAMIC_ANNOTATIONS_EXTERNAL_IMPL=1
+build:tsan --copt -O1
+build:tsan --copt -fno-omit-frame-pointer
+build:tsan --linkopt -fsanitize=thread
+build:tsan --build_tests_only
+build:tsan --test_tag_filters=-no-tsan
+
+# USAN (Undefined Behavior Sanitizer)
+build:ubsan --copt -fsanitize=undefined
+build:ubsan --copt -fno-sanitize-recover=all
+build:ubsan --copt -fno-omit-frame-pointer
+build:ubsan --linkopt -fsanitize=undefined
+build:ubsan --linkopt -fno-sanitize-recover=all
+build:ubsan --build_tests_only
+build:ubsan --test_tag_filters=-no-ubsan
diff --git a/shared/bazel/compiler_flags/windows_flags.rc b/shared/bazel/compiler_flags/windows_flags.rc
new file mode 100644
index 00000000000..7e604e43c9f
--- /dev/null
+++ b/shared/bazel/compiler_flags/windows_flags.rc
@@ -0,0 +1,53 @@
+################################
+# Common Flags
+################################
+# Warning level
+build:windows_common --copt=/W3
+build:windows_common --copt=/WX
+
+# C++ options
+build:windows_common --cxxopt=/EHsc
+build:windows_common --cxxopt=/FS
+build:windows_common --cxxopt=/Zc:inline
+build:windows_common --cxxopt=/wd4244
+build:windows_common --cxxopt=/wd4267
+build:windows_common --cxxopt=/wd4146
+build:windows_common --cxxopt=/wd4996
+build:windows_common --cxxopt=/Zc:throwingNew
+build:windows_common --cxxopt=/D_CRT_SECURE_NO_WARNINGS
+build:windows_common --cxxopt=/std:c++20
+build:windows_common --cxxopt=/permissive-
+build:windows_common --cxxopt=/utf-8
+build:windows_common --cxxopt=/bigobj
+build:windows_common --cxxopt=/Zc:__cplusplus
+build:windows_common --cxxopt=/Zc:preprocessor
+build:windows_common --cxxopt=/wd5105
+
+# C Only
+build:windows_common --conlyopt=/FS
+build:windows_common --conlyopt=/Zc:inline
+build:windows_common --conlyopt=/D_CRT_SECURE_NO_WARNINGS
+
+# build:windows_common --linkopt=/IGNORE:4099
+
+# TODO there is a "bug" in bazel that forces "/D_WIN32_WINNT=0x0601". Remove it from the files that break because of this.
+build:windows_common --per_file_copt=wpiutil/src/main/native/cpp/timestamp.cpp,wpinet/src/main/native/thirdparty/libuv/src/win/util.cpp,hal/src/main/native/sim/HAL.cpp@/U_WIN32_WINNT
+
+################################
+# Standard Windows Flags
+################################
+build:windows --config=windows_common
+
+build:windows --linkopt=/DEPENDENTLOADFLAG:0x1100
+
+# TODO
+build:windows --copt=/D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR
+
+################################
+# ARM Windows Flags
+################################
+build:windows_arm --config=windows_common
+
+build:windows_arm --cpu=arm64_windows
+
+build:windows_arm --linkopt=/IGNORE:4099
diff --git a/shared/bazel/rules/gen/BUILD.bazel b/shared/bazel/rules/gen/BUILD.bazel
new file mode 100644
index 00000000000..49f2e10eb96
--- /dev/null
+++ b/shared/bazel/rules/gen/BUILD.bazel
@@ -0,0 +1,8 @@
+load("@rules_python//python:defs.bzl", "py_binary")
+
+py_binary(
+    name = "gen_resources",
+    srcs = ["gen_resources.py"],
+    tags = ["manual"],
+    visibility = ["//visibility:public"],
+)
diff --git a/shared/bazel/rules/gen/gen-resources.bzl b/shared/bazel/rules/gen/gen-resources.bzl
new file mode 100644
index 00000000000..65dbf3fedca
--- /dev/null
+++ b/shared/bazel/rules/gen/gen-resources.bzl
@@ -0,0 +1,10 @@
+def generate_resources(name, resource_files, prefix, namespace, visibility = None):
+    cmd = "$(locations //shared/bazel/rules/gen:gen_resources) --prefix={} --namespace={} --resources $(SRCS) --output_files $(OUTS)".format(prefix, namespace, resource_files)
+    native.genrule(
+        name = name,
+        srcs = resource_files,
+        outs = ["{}.cpp".format(input_file) for input_file in resource_files],
+        cmd = cmd,
+        tools = ["//shared/bazel/rules/gen:gen_resources"],
+        visibility = visibility,
+    )
diff --git a/shared/bazel/rules/gen/gen-version-file.bzl b/shared/bazel/rules/gen/gen-version-file.bzl
new file mode 100644
index 00000000000..7ec27f3c4cf
--- /dev/null
+++ b/shared/bazel/rules/gen/gen-version-file.bzl
@@ -0,0 +1,19 @@
+def _generate_version_file_impl(ctx):
+    out = ctx.actions.declare_file(ctx.attr.output_file)
+    ctx.actions.expand_template(
+        output = out,
+        template = ctx.file.template,
+        substitutions = {"${wpilib_version}": "TODO - Built with bazel"},
+    )
+    return [DefaultInfo(files = depset([out]))]
+
+generate_version_file = rule(
+    implementation = _generate_version_file_impl,
+    attrs = {
+        "output_file": attr.string(mandatory = True),
+        "template": attr.label(
+            allow_single_file = True,
+            mandatory = True,
+        ),
+    },
+)
diff --git a/shared/bazel/rules/gen/gen_resources.py b/shared/bazel/rules/gen/gen_resources.py
new file mode 100644
index 00000000000..869ff1d5914
--- /dev/null
+++ b/shared/bazel/rules/gen/gen_resources.py
@@ -0,0 +1,58 @@
+import os
+import argparse
+import binascii
+
+
+def generate_file(resource_file, output_file, prefix, namespace):
+    func_name = "GetResource_" + os.path.basename(resource_file).replace(
+        "-", "_"
+    ).replace(".", "_")
+
+    with open(resource_file, "rb") as f:
+        raw_data = f.read()
+        hex = str(binascii.hexlify(raw_data), "ascii")
+        data = ", ".join("0x" + hex[i : i + 2] for i in range(0, len(hex), 2))
+        data_size = len(raw_data)
+
+    output = """#include <stddef.h>
+#include <string_view>
+extern "C" {{
+static const unsigned char contents[] = {{ {data} }};
+const unsigned char* {prefix}_{func_name}(size_t* len) {{
+  *len = {data_size};
+  return contents;
+}}
+}}
+namespace {namespace} {{
+std::string_view {func_name}() {{
+  return std::string_view(reinterpret_cast<const char*>(contents), {data_size});
+}}
+}}
+""".format(
+        func_name=func_name,
+        data_size=data_size,
+        prefix=prefix,
+        data=data,
+        namespace=namespace,
+    )
+
+    with open(output_file, "w") as f:
+        f.write(output)
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--namespace")
+    parser.add_argument("--prefix")
+    parser.add_argument("--resources", nargs="+")
+    parser.add_argument("--output_files", nargs="+")
+
+    args = parser.parse_args()
+    assert len(args.resources) == len(args.output_files)
+
+    for i, resource in enumerate(args.resources):
+        generate_file(resource, args.output_files[i], args.prefix, args.namespace)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/thirdparty/googletest/BUILD.bazel b/thirdparty/googletest/BUILD.bazel
new file mode 100644
index 00000000000..198ae1e0c2f
--- /dev/null
+++ b/thirdparty/googletest/BUILD.bazel
@@ -0,0 +1,10 @@
+load("@rules_cc//cc:defs.bzl", "cc_library")
+
+cc_library(
+    name = "googletest.static",
+    srcs = glob(["src/**"]),
+    hdrs = glob(["include/**"]),
+    includes = ["src/googletest"],
+    strip_include_prefix = "include",
+    visibility = ["//visibility:public"],
+)
diff --git a/wpilibj/BUILD.bazel b/wpilibj/BUILD.bazel
new file mode 100644
index 00000000000..f0a9359ae91
--- /dev/null
+++ b/wpilibj/BUILD.bazel
@@ -0,0 +1,82 @@
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+load("//shared/bazel/rules/gen:gen-version-file.bzl", "generate_version_file")
+
+generate_version_file(
+    name = "generate-version",
+    output_file = "WPILibVersion.java",
+    template = "src/generate/WPILibVersion.java.in",
+    visibility = ["//visibility:public"],
+)
+
+filegroup(
+    name = "generated_java",
+    srcs = glob(["src/generated/main/java/**/*.java"]),
+    visibility = ["//wpilibj:__subpackages__"],
+)
+
+java_library(
+    name = "wpilibj",
+    srcs = [
+        ":generate-version",
+        ":generated_java",
+    ] + glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "//cameraserver:cameraserver-java",
+        "//cscore:cscore-java",
+        "//hal:hal-java",
+        "//ntcore:networktables-java",
+        "//wpimath:wpimath-java",
+        "//wpinet:wpinet-java",
+        "//wpiunits",
+        "//wpiutil:wpiutil-java",
+        "@maven//:org_ejml_ejml_core",
+        "@maven//:org_ejml_ejml_simple",
+    ],
+)
+
+cc_binary(
+    name = "DevMain-Cpp",
+    srcs = ["src/dev/native/cpp/main.cpp"],
+    deps = [
+    ],
+)
+
+java_binary(
+    name = "DevMain-Java",
+    srcs = ["src/dev/java/edu/wpi/first/wpilibj/DevMain.java"],
+    main_class = "edu.wpi.first.wpilibj.DevMain",
+    deps = [
+        "//hal:hal-java",
+        "//ntcore:networktables-java",
+        "//wpimath:wpimath-java",
+        "//wpiutil:wpiutil-java",
+    ],
+)
+
+filegroup(
+    name = "hid_schema",
+    srcs = [
+        "src/generate/hids.json",
+        "src/generate/hids.schema.json",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+filegroup(
+    name = "pwm_schema",
+    srcs = [
+        "src/generate/pwm_motor_controllers.json",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+filegroup(
+    name = "templates",
+    srcs = glob(["src/generate/*.jinja"]) + [
+        ":hid_schema",
+        ":pwm_schema",
+    ],
+    visibility = ["//visibility:public"],
+)
diff --git a/wpimath/BUILD.bazel b/wpimath/BUILD.bazel
new file mode 100644
index 00000000000..2f650293fdb
--- /dev/null
+++ b/wpimath/BUILD.bazel
@@ -0,0 +1,40 @@
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+load("@rules_python//python:defs.bzl", "py_binary")
+
+filegroup(
+    name = "generated_java",
+    srcs = glob(["src/generated/main/java/**/*.java"]),
+    visibility = ["//wpimath:__subpackages__"],
+)
+
+java_library(
+    name = "wpimath-java",
+    srcs = [":generated_java"] + glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "//wpiunits",
+        "//wpiutil:wpiutil-java",
+        "@maven//:com_fasterxml_jackson_core_jackson_annotations",
+        "@maven//:com_fasterxml_jackson_core_jackson_core",
+        "@maven//:com_fasterxml_jackson_core_jackson_databind",
+        "@maven//:org_ejml_ejml_core",
+        "@maven//:org_ejml_ejml_ddense",
+        "@maven//:org_ejml_ejml_simple",
+        "@maven//:us_hebi_quickbuf_quickbuf_runtime",
+    ],
+)
+
+java_binary(
+    name = "DevMain-Java",
+    srcs = ["src/dev/java/edu/wpi/first/math/DevMain.java"],
+    main_class = "edu.wpi.first.math.DevMain",
+    deps = [
+        ":wpimath-java",
+    ],
+)
+
+py_binary(
+    name = "ExponentialProfileModel",
+    srcs = ["algorithms/ExponentialProfileModel.py"],
+    tags = ["manual"],
+)
diff --git a/wpinet/BUILD.bazel b/wpinet/BUILD.bazel
new file mode 100644
index 00000000000..c6bdebae7a0
--- /dev/null
+++ b/wpinet/BUILD.bazel
@@ -0,0 +1,218 @@
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+load("//shared/bazel/rules/gen:gen-resources.bzl", "generate_resources")
+
+WIN_UV_SRCS = glob([
+    "src/main/native/thirdparty/libuv/src/win/*.cpp",
+    "src/main/native/thirdparty/libuv/src/win/*.h",
+])
+
+UNIX_UV_SRCS = [
+    "src/main/native/thirdparty/libuv/src/unix/async.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/core.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/dl.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/fs.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/getaddrinfo.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/getnameinfo.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/loop-watcher.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/loop.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/pipe.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/poll.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/process.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/random-devurandom.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/random-getentropy.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/random-getrandom.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/signal.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/stream.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/tcp.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/thread.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/tty.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/udp.cpp",
+] + glob(["src/main/native/thirdparty/libuv/src/unix/*.h"])
+
+MAC_UV_SRCS = [
+    "src/main/native/thirdparty/libuv/src/unix/bsd-ifaddrs.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/darwin.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/darwin-proctitle.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/fsevents.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/kqueue.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/proctitle.cpp",
+]
+
+LINUX_UV_SRCS = [
+    "src/main/native/thirdparty/libuv/src/unix/linux.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/procfs-exepath.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/proctitle.cpp",
+    "src/main/native/thirdparty/libuv/src/unix/random-sysctl-linux.cpp",
+]
+
+cc_library(
+    name = "libuv-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/libuv/include/**/*.h",
+    ]),
+    includes = ["src/main/native/thirdparty/libuv/src"],
+    strip_include_prefix = "src/main/native/thirdparty/libuv/include",
+    visibility = ["//wpinet:__subpackages__"],
+)
+
+filegroup(
+    name = "libuv-srcs",
+    srcs = select({
+               "@rules_bzlmodrio_toolchains//constraints/combined:is_unix": UNIX_UV_SRCS,
+               "//conditions:default": [],
+           }) +
+           select({
+               "@bazel_tools//src/conditions:darwin": MAC_UV_SRCS,
+               "@bazel_tools//src/conditions:windows": WIN_UV_SRCS,
+               "@rules_bzlmodrio_toolchains//constraints/combined:is_linux": LINUX_UV_SRCS,
+           }) + glob(["src/main/native/thirdparty/libuv/src/*"]),
+    visibility = ["//wpinet:__subpackages__"],
+)
+
+cc_library(
+    name = "tcpsockets-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/tcpsockets/include/**/*.h",
+    ]),
+    includes = ["src/main/native/thirdparty/tcpsockets/include"],
+    strip_include_prefix = "src/main/native/thirdparty/tcpsockets/include",
+    visibility = ["//wpinet:__subpackages__"],
+)
+
+filegroup(
+    name = "tcpsockets-srcs",
+    srcs = glob(["src/main/native/thirdparty/tcpsockets/cpp/**"]),
+    visibility = ["//wpinet:__subpackages__"],
+)
+
+generate_resources(
+    name = "generate-resources",
+    namespace = "wpi",
+    prefix = "WPI",
+    resource_files = glob(["src/main/native/resources/*"]),
+)
+
+filegroup(
+    name = "native-srcs",
+    srcs = ["generate-resources"] + select({
+        "@bazel_tools//src/conditions:darwin": glob(["src/main/native/macOS/*"]),
+        "@bazel_tools//src/conditions:windows": glob(["src/main/native/windows/*"]),
+        "@rules_bzlmodrio_toolchains//constraints/combined:is_linux": glob(["src/main/native/linux/*"]),
+    }),
+)
+
+cc_library(
+    name = "private_includes",
+    hdrs = glob([
+        "src/main/native/cpp/*.h",
+    ]),
+    strip_include_prefix = "src/main/native/cpp",
+)
+
+cc_library(
+    name = "wpinet.static",
+    srcs = glob(
+        ["src/main/native/cpp/**"],
+        exclude = ["src/main/native/cpp/jni/**"],
+    ) + [
+        ":libuv-srcs",
+        ":tcpsockets-srcs",
+    ] + ["native-srcs"],
+    hdrs = glob(["src/main/native/include/**/*"]),
+    includes = ["src/main/native/include"],
+    strip_include_prefix = "src/main/native/include",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":libuv-headers",
+        ":private_includes",
+        ":tcpsockets-headers",
+        "//wpiutil:wpiutil.static",
+    ],
+)
+
+java_library(
+    name = "wpinet-java",
+    srcs = glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "//wpiutil:wpiutil-java",
+    ],
+)
+
+cc_test(
+    name = "wpinet-cpp-test",
+    size = "small",
+    srcs = glob([
+        "src/test/native/**/*.cpp",
+        "src/test/native/**/*.h",
+    ]),
+    tags = ["no-asan"],
+    deps = [
+        ":wpinet.static",
+        "//thirdparty/googletest:googletest.static",
+        "//wpiutil:wpiutil-testlib",
+    ],
+)
+
+cc_binary(
+    name = "DevMain-Cpp",
+    srcs = ["src/dev/native/cpp/main.cpp"],
+    deps = [
+        ":wpinet.static",
+    ],
+)
+
+java_binary(
+    name = "DevMain-java",
+    srcs = ["src/dev/java/edu/wpi/first/net/DevMain.java"],
+    main_class = "edu.wpi.first.net.DevMain",
+    deps = [
+        ":wpinet-java",
+        "//wpiutil:wpiutil-java",
+    ],
+)
+
+cc_binary(
+    name = "netconsoleServer",
+    srcs = ["src/netconsoleServer/native/cpp/main.cpp"],
+    linkopts = select({
+        "@rules_bzlmodrio_toolchains//constraints/combined:is_linux": ["-lutil"],
+        "//conditions:default": [],
+    }),
+    deps = [
+        ":wpinet.static",
+    ],
+)
+
+cc_binary(
+    name = "netconsoleTee",
+    srcs = ["src/netconsoleTee/native/cpp/main.cpp"],
+    deps = [
+        ":wpinet.static",
+    ],
+)
+
+cc_binary(
+    name = "dsclient",
+    srcs = ["examples/dsclient/dsclient.cpp"],
+    deps = [
+        ":wpinet.static",
+    ],
+)
+
+cc_binary(
+    name = "parallelconnect",
+    srcs = ["examples/parallelconnect/parallelconnect.cpp"],
+    deps = [
+        ":wpinet.static",
+    ],
+)
+
+cc_binary(
+    name = "webserver",
+    srcs = ["examples/webserver/webserver.cpp"],
+    deps = [
+        ":wpinet.static",
+    ],
+)
diff --git a/wpiunits/BUILD.bazel b/wpiunits/BUILD.bazel
new file mode 100644
index 00000000000..d6686308a97
--- /dev/null
+++ b/wpiunits/BUILD.bazel
@@ -0,0 +1,17 @@
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+
+java_library(
+    name = "wpiunits",
+    srcs = glob(["src/main/java/**/*.java"]) + glob(["src/generated/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [],
+)
+
+java_binary(
+    name = "DevMain-Java",
+    srcs = ["src/dev/java/edu/wpi/first/units/DevMain.java"],
+    main_class = "edu.wpi.first.units.DevMain",
+    deps = [
+        ":wpiunits",
+    ],
+)
diff --git a/wpiutil/BUILD.bazel b/wpiutil/BUILD.bazel
new file mode 100644
index 00000000000..d23d218ce49
--- /dev/null
+++ b/wpiutil/BUILD.bazel
@@ -0,0 +1,268 @@
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
+load("@rules_java//java:defs.bzl", "java_binary", "java_library")
+load("@rules_python//python:defs.bzl", "py_binary")
+load("//shared/bazel/rules/gen:gen-resources.bzl", "generate_resources")
+
+cc_library(
+    name = "argparse-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/argparse/include/**/*",
+    ]),
+    includes = ["src/main/native/thirdparty/argparse/include"],
+    strip_include_prefix = "src/main/native/thirdparty/argparse/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "expected-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/expected/include/**/*",
+    ]),
+    includes = ["src/main/native/thirdparty/expected/include"],
+    strip_include_prefix = "src/main/native/thirdparty/expected/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "concurrentqueue-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/concurrentqueue/include/**/*",
+    ]),
+    includes = ["src/main/native/thirdparty/concurrentqueue/include"],
+    strip_include_prefix = "src/main/native/thirdparty/concurrentqueue/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "fmtlib-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/fmtlib/include/**/*.h",
+    ]),
+    includes = ["src/main/native/thirdparty/fmtlib/include"],
+    strip_include_prefix = "src/main/native/thirdparty/fmtlib/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+filegroup(
+    name = "fmtlib-srcs",
+    srcs = glob(["src/main/native/thirdparty/fmtlib/src/**"]),
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "json-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/json/include/**/*.h",
+    ]),
+    includes = ["src/main/native/thirdparty/json/include"],
+    strip_include_prefix = "src/main/native/thirdparty/json/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "llvm-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/llvm/include/**/*.h",
+    ]),
+    includes = ["src/main/native/thirdparty/llvm/include"],
+    strip_include_prefix = "src/main/native/thirdparty/llvm/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+filegroup(
+    name = "llvm-srcs",
+    srcs = glob(["src/main/native/thirdparty/llvm/cpp/**"]),
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "memory-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/memory/include/**/*.hpp",
+    ]),
+    includes = ["src/main/native/thirdparty/memory/include"],
+    strip_include_prefix = "src/main/native/thirdparty/memory/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+filegroup(
+    name = "memory-srcs",
+    srcs = glob(["src/main/native/thirdparty/memory/src/**"]),
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "mpack-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/mpack/include/**/*.h",
+    ]),
+    includes = ["src/main/native/thirdparty/mpack/include"],
+    strip_include_prefix = "src/main/native/thirdparty/mpack/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+filegroup(
+    name = "mpack-srcs",
+    srcs = glob(["src/main/native/thirdparty/mpack/src/**"]),
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "protobuf-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/protobuf/include/**/*.h",
+        "src/main/native/thirdparty/protobuf/include/**/*.inc",
+    ]),
+    includes = ["src/main/native/thirdparty/protobuf/include"],
+    strip_include_prefix = "src/main/native/thirdparty/protobuf/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+filegroup(
+    name = "protobuf-srcs",
+    srcs = glob(["src/main/native/thirdparty/protobuf/src/**"]),
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+cc_library(
+    name = "sigslot-headers",
+    hdrs = glob([
+        "src/main/native/thirdparty/sigslot/include/**/*.h",
+    ]),
+    includes = ["src/main/native/thirdparty/sigslot/include"],
+    strip_include_prefix = "src/main/native/thirdparty/sigslot/include",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
+generate_resources(
+    name = "generate-resources",
+    namespace = "wpi",
+    prefix = "WPI",
+    resource_files = glob(["src/main/native/resources/*"]),
+)
+
+filegroup(
+    name = "native-srcs",
+    srcs = select({
+        "@bazel_tools//src/conditions:windows": glob([
+            "src/main/native/windows/*.cpp",
+            "src/main/native/windows/*.h",
+        ]),
+        "@rules_bzlmodrio_toolchains//constraints/combined:is_unix": glob(["src/main/native/unix/*.cpp"]),
+    }),
+)
+
+cc_library(
+    name = "wpiutil.static",
+    srcs = glob(
+        ["src/main/native/cpp/**"],
+        exclude = ["src/main/native/cpp/jni/**"],
+    ) + [
+        ":fmtlib-srcs",
+        ":generate-resources",
+        ":llvm-srcs",
+        ":memory-srcs",
+        ":mpack-srcs",
+        ":native-srcs",
+        ":protobuf-srcs",
+    ],
+    hdrs = glob(["src/main/native/include/**/*"]),
+    includes = ["src/main/native/include"],
+    strip_include_prefix = "src/main/native/include",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":argparse-headers",
+        ":concurrentqueue-headers",
+        ":expected-headers",
+        ":fmtlib-headers",
+        ":json-headers",
+        ":llvm-headers",
+        ":memory-headers",
+        ":mpack-headers",
+        ":protobuf-headers",
+        ":sigslot-headers",
+    ] + select({
+        "@rules_bzlmodrio_toolchains//constraints/is_roborio:roborio": ["@bzlmodrio-ni//libraries/cpp/ni:shared"],
+        "//conditions:default": [],
+    }),
+)
+
+java_library(
+    name = "wpiutil-java",
+    srcs = glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "@maven//:com_fasterxml_jackson_core_jackson_annotations",
+        "@maven//:com_fasterxml_jackson_core_jackson_core",
+        "@maven//:com_fasterxml_jackson_core_jackson_databind",
+        "@maven//:us_hebi_quickbuf_quickbuf_runtime",
+    ],
+)
+
+cc_library(
+    name = "wpiutil-testlib",
+    hdrs = glob(["src/test/native/include/**"]),
+    strip_include_prefix = "src/test/native/include",
+    visibility = ["//visibility:public"],
+)
+
+cc_test(
+    name = "wpiutil-cpp-test",
+    size = "small",
+    srcs = glob(["src/test/native/cpp/**"]),
+    linkstatic = True,
+    tags = ["no-tsan"],  # TODO(pj.reiniger) Find problem
+    deps = [
+        ":wpiutil.static",
+        ":wpiutil-testlib",
+        "//thirdparty/googletest:googletest.static",
+    ],
+)
+
+cc_binary(
+    name = "DevMain-Cpp",
+    srcs = ["src/dev/native/cpp/main.cpp"],
+    deps = [
+        ":wpiutil.static",
+    ],
+)
+
+java_binary(
+    name = "DevMain-Java",
+    srcs = ["src/dev/java/edu/wpi/first/util/DevMain.java"],
+    main_class = "edu.wpi.first.util.DevMain",
+    deps = [
+        ":wpiutil-java",
+    ],
+)
+
+py_binary(
+    name = "datalog",
+    srcs = ["examples/printlog/datalog.py"],
+    tags = ["manual"],
+)
+
+cc_binary(
+    name = "printlog",
+    srcs = ["examples/printlog/printlog.cpp"],
+    deps = [
+        ":wpiutil.static",
+    ],
+)
+
+cc_binary(
+    name = "writelog",
+    srcs = ["examples/writelog/writelog.cpp"],
+    deps = [
+        ":wpiutil.static",
+    ],
+)
+
+java_binary(
+    name = "printlog-java",
+    srcs = ["src/printlog/java/printlog/PrintLog.java"],
+    main_class = "printlog.PrintLog",
+    deps = [
+        ":wpiutil-java",
+    ],
+)