chore(deps): bump actions/setup-python from 5 to 6

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5 to 6.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/zmkfirmware/zmk-dev-arm:4.1-branch
+FROM docker.io/zmkfirmware/zmk-dev-arm:3.5
 
 COPY .bashrc tmp
 RUN mv /tmp/.bashrc ~/.bashrc

.github/workflows/ble-test.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
       - name: Find test directories
         id: test-dirs
         run: |
@@ -35,10 +35,10 @@ jobs:
         test: ${{ fromJSON(needs.collect-tests.outputs.test-dirs) }}
     runs-on: ubuntu-latest
     container:
-      image: docker.io/zmkfirmware/zmk-build-arm:4.1
+      image: docker.io/zmkfirmware/zmk-build-arm:3.5
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
       - name: Cache west modules
         uses: actions/cache@v4
         env:

.github/workflows/build-user-config.yml

@@ -30,28 +30,17 @@ jobs:
     name: Fetch Build Keyboards
     outputs:
       build_matrix: ${{ env.build_matrix }}
-      has_valid_build_matrix: ${{ steps.fetch.outputs.has_valid_build_matrix }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: Fetch Build Matrix
-        id: fetch
         run: |
-          matrix_content=$(yq -oj -I0 '${{ inputs.build_matrix_path }}')
+          echo "build_matrix=$(yq -oj -I0 '${{ inputs.build_matrix_path }}')" >> $GITHUB_ENV
-
+          yq -oj "${{ inputs.build_matrix_path }}"
-          if [ -z "$matrix_content" ] || [ "$matrix_content" = "null" ]; then
-            echo "::notice file=${{inputs.build_matrix_path}},title=Empty build matrix file::To add a keyboard to the build, see https://zmk.dev/docs/user-setup#add-a-keyboard."
-            echo "has_valid_build_matrix=false" >> $GITHUB_OUTPUT
-          else
-            echo "build_matrix=$matrix_content" >> $GITHUB_ENV
-            echo "has_valid_build_matrix=true" >> $GITHUB_OUTPUT
-            echo "$matrix_content"
-          fi
 
   build:
     runs-on: ubuntu-latest
-    if: needs.matrix.outputs.has_valid_build_matrix == 'true'
     container:
       image: zmkfirmware/zmk-build-arm:stable
     needs: matrix
@@ -60,21 +49,15 @@ jobs:
       fail-fast: false
       matrix: ${{ fromJson(needs.matrix.outputs.build_matrix) }}
     steps:
-      - name: Act Workaround # https://github.com/nektos/act/issues/973
-        if: ${{ env.ACT }}
-        run: |
-          apt-get update && apt-get install -y curl unzip
-          curl -fsSL https://deb.nodesource.com/setup_22.x | bash && apt install -y nodejs
-
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: Create build directory
         run: |
           echo "build_dir=$(mktemp -d)" >> $GITHUB_ENV
 
       - name: Prepare variables
-        shell: bash -x {0}
+        shell: sh -x {0}
         env:
           board: ${{ matrix.board }}
           shield: ${{ matrix.shield }}
@@ -98,7 +81,7 @@ jobs:
           echo "extra_west_args=${extra_west_args}" >> $GITHUB_ENV
           echo "extra_cmake_args=${shield:+-DSHIELD=\"$shield\"}${zmk_load_arg}" >> $GITHUB_ENV
           echo "display_name=${shield:+$shield - }${board}" >> $GITHUB_ENV
-          echo "artifact_name=${artifact_name:-${shield:+$shield-}${board//\//_}-zmk}" >> $GITHUB_ENV
+          echo "artifact_name=${artifact_name:-${shield:+$shield-}${board}-zmk}" >> $GITHUB_ENV
 
       - name: Copy config files to isolated temporary directory
         run: |
@@ -133,13 +116,6 @@ jobs:
         working-directory: ${{ env.base_dir }}
         run: west update --fetch-opt=--filter=tree:0
 
-      - name: Check ZMK revision
-        working-directory: ${{ env.base_dir }}
-        run: |
-          zmk_revision=$(west list -f "{revision}" zmk)
-          echo "zmk_revision=${zmk_revision}" >> $GITHUB_ENV
-          echo "ZMK revision: ${zmk_revision}"
-
       - name: West Zephyr export
         working-directory: ${{ env.base_dir }}
         run: west zephyr-export
@@ -149,38 +125,6 @@ jobs:
         shell: sh -x {0}
         run: west build -s zmk/app -d "${{ env.build_dir }}" -b "${{ matrix.board }}" ${{ env.extra_west_args }} -- -DZMK_CONFIG=${{ env.base_dir }}/${{ inputs.config_path }} ${{ env.extra_cmake_args }} ${{ matrix.cmake-args }}
 
-      - name: Warn about building from main if build fails
-        if: failure() && env.zmk_revision == 'main'
-        run: |
-          echo "# Consider Pinning ZMK" >> $GITHUB_STEP_SUMMARY
-          echo "Your recent build failure might be the result of breaking changes made to ZMK's main branch." >> $GITHUB_STEP_SUMMARY
-          echo "Consider [pinning your ZMK version](https://zmk.dev/blog/2025/06/20/pinned-zmk) to a release for increased stability." >> $GITHUB_STEP_SUMMARY
-          echo "See also the [list of released versions](https://github.com/zmkfirmware/zmk/releases)." >> $GITHUB_STEP_SUMMARY
-          echo "If you wish to stay on main, check the most recent pending release PR for breaking changes. [Our blog](https://zmk.dev/blog) may have upgrade information if breaking changes are significant." >> $GITHUB_STEP_SUMMARY
-
-      - name: Check if building a board without explicit ZMK compat
-        if: always()
-        working-directory: "${{ env.base_dir }}/${{ inputs.config_path }}"
-        run: |
-          if ! (grep "CONFIG_ZMK_BOARD_COMPAT=y" "${{ env.build_dir }}/zephyr/.config" > /dev/null)
-          then
-            original_board=$(echo "${{ matrix.board }}" | sed -e 's$/.*$$')
-            west_board=$(west boards --board-root ${{ env.base_dir }}/zmk/app/module --board-root ${{ env.base_dir }}/zmk/app --board "${original_board}")
-            if [ -z "$west_board" ]; then
-              echo "Not found the board listed with west boards. Skipping further checking."
-              exit 0
-            fi
-
-            west boards --board-root ${{ env.base_dir }}/zmk/app/module --board-root ${{ env.base_dir }}/zmk/app --board "${original_board}" --format "{qualifiers}" | grep "zmk" > /dev/null
-            if [ $? -ne 0 ]
-            then
-              echo "::warning file=build/zephyr/.config,title=Missing ZMK Compat::The selected board does not report explicit ZMK compat. Please verify you've selected the correct board and ZMK variant if one exists"
-            else
-              echo "::error file=build/zephyr/.config,title=Missing ZMK Compat::The selected board is not set up for ZMK and there is a ZMK variant available. See https://zmk.dev/blog/2025/12/09/zephyr-4-1#zmk-board-variant."
-              exit 1
-            fi
-          fi
-
       - name: ${{ env.display_name }} Kconfig file
         run: |
           if [ -f "${{ env.build_dir }}/zephyr/.config" ]
@@ -224,7 +168,6 @@ jobs:
 
   merge:
     runs-on: ubuntu-latest
-    if: needs.matrix.outputs.has_valid_build_matrix == 'true'
     needs: build
     name: Merge Output Artifacts
     steps:

.github/workflows/build.yml

@@ -23,14 +23,14 @@ jobs:
     if: ${{ always() }}
     runs-on: ubuntu-latest
     container:
-      image: docker.io/zmkfirmware/zmk-build-arm:4.1
+      image: docker.io/zmkfirmware/zmk-build-arm:3.5
     needs: compile-matrix
     strategy:
       matrix:
         include: ${{ fromJSON(needs.compile-matrix.outputs.include-list) }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
       - name: Cache west modules
@@ -61,7 +61,7 @@ jobs:
         with:
           node-version: "14.x"
       - name: Install @actions/artifact
-        run: npm install @actions/artifact@5.0.3
+        run: npm install @actions/artifact
       - name: Build
         uses: actions/github-script@v7
         id: boards-list
@@ -123,7 +123,7 @@ jobs:
                 }
 
                 const cmakeName = shieldArgs['cmake-args'] ? '-' + (shieldArgs.nickname || shieldArgs['cmake-args'].split(' ').join('')) : '';
-                const artifactName = `${{ matrix.board }}${shieldArgs.shield ? '-' + shieldArgs.shield : ''}${cmakeName}-zmk`.replaceAll('/', '_');
+                const artifactName = `${{ matrix.board }}${shieldArgs.shield ? '-' + shieldArgs.shield : ''}${cmakeName}-zmk`;
 
                 await artifact.uploadArtifact(artifactName, files, rootDirectory, options);
               } catch (e) {
@@ -187,7 +187,7 @@ jobs:
       core-include: ${{ steps.core-list.outputs.result }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
       - name: Use Node.js
@@ -218,7 +218,7 @@ jobs:
       boards-include: ${{ steps.boards-list.outputs.result }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
@@ -277,7 +277,6 @@ jobs:
                       );
                     } else {
                       console.error("Board without keys or interconnect");
-                      return [];
                     }
                     break;
                   case "shield":
@@ -346,7 +345,7 @@ jobs:
       organized-metadata: ${{ steps.organize-metadata.outputs.result }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
       - name: Use Node.js
@@ -428,7 +427,7 @@ jobs:
       core-changes: ${{ steps.core-changes.outputs.result }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
         with:
           persist-credentials: false
       - uses: tj-actions/changed-files@9200e69727eb73eb060652b19946b8a2fdfb654b # pin to v45.0.8 due to https://github.com/tj-actions/changed-files/issues/2463 https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised

.github/workflows/doc-checks.yml

@@ -14,7 +14,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - uses: bahmutov/npm-install@v1
         with:
           working-directory: docs
@@ -24,7 +24,7 @@ jobs:
   typecheck:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - uses: bahmutov/npm-install@v1
         with:
           working-directory: docs

.github/workflows/hardware-metadata-validation.yml

@@ -18,9 +18,9 @@ jobs:
   validate-metadata:
     runs-on: ubuntu-latest
     container:
-      image: docker.io/zmkfirmware/zmk-dev-arm:4.1
+      image: docker.io/zmkfirmware/zmk-dev-arm:3.5
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: pip install --break-system-packages -r app/scripts/requirements.txt
       - name: West init

.github/workflows/pre-commit.yml

@@ -8,8 +8,8 @@ jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: 3.x
       - uses: pre-commit/action@v3.0.1

.github/workflows/release-please.yml

@@ -35,7 +35,7 @@ jobs:
       ZMK_RELEASE_PLEASE_TOKEN: ${{ secrets.ZMK_RELEASE_PLEASE_TOKEN }}
       VERSION: v${{ needs.handle-commit.outputs.major }}.${{ needs.handle-commit.outputs.minor }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
 
       - name: Create major.minor branch
         if: ${{ needs.handle-commit.outputs.patch == '0' }}

.github/workflows/test.yml

@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
       - name: Find test directories
         id: test-dirs
         run: |
@@ -37,10 +37,10 @@ jobs:
         test: ${{ fromJSON(needs.collect-tests.outputs.test-dirs) }}
     runs-on: ubuntu-latest
     container:
-      image: docker.io/zmkfirmware/zmk-build-arm:4.1
+      image: docker.io/zmkfirmware/zmk-build-arm:3.5
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
       - name: Cache west modules
         uses: actions/cache@v4
         env:
@@ -66,7 +66,7 @@ jobs:
         run: west zephyr-export
       - name: Test ${{ matrix.test }}
         working-directory: app
-        run: ZMK_TESTS_VERBOSE=1 west test tests/${{ matrix.test }}
+        run: west test tests/${{ matrix.test }}
       - name: Archive artifacts
         if: ${{ always() }}
         uses: actions/upload-artifact@v4

.gitignore

@@ -1,7 +1,6 @@
 /.west
 /bootloader
 /modules
-/optional
 /tools
 /zephyr
 /zmk-config

.release-please-manifest.json

@@ -1 +1 @@
-{".":"0.4.0"}
+{".":"0.3.0"}

CHANGELOG.md

@@ -1,100 +1,5 @@
 # Changelog
 
-## [0.4.0](https://github.com/zmkfirmware/zmk/compare/v0.3.0...v0.4.0) (2026-03-20)
-
-
-### ⚠ BREAKING CHANGES
-
-* Move to zephyr v4.1 ([#3060](https://github.com/zmkfirmware/zmk/issues/3060))
-* **core:** Allow layer behaviors to "lock" layers on (https://github.com/zmkfirmware/zmk/pull/2717)
-
-### Features
-
-* Add double tap to enter bootloader functionality ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* Add nBOOT_SEL bit setup for STM32 G0/C0 targets ([f85ec7e](https://github.com/zmkfirmware/zmk/commit/f85ec7e7a24be10f1cf59025a192569dc0b33167))
-* Add ZMK_BOARD_COMPAT Kconfig symbol, and check for it ([a23aa00](https://github.com/zmkfirmware/zmk/commit/a23aa009d7a07d67fe5609caca7372e16610f238))
-* Allow layer behaviors to "lock" layers on (https://github.com/zmkfirmware/zmk/pull/2717) ([5138c6f](https://github.com/zmkfirmware/zmk/commit/5138c6fb14783b756c5a3e61581625c700f3555b))
-* **behaviors:** Add retention boot mode to reset. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **ble:** Use appearance set in the BT_DEVICE_APPEARANCE config ([#3115](https://github.com/zmkfirmware/zmk/issues/3115)) ([ad7fbfe](https://github.com/zmkfirmware/zmk/commit/ad7fbfef920d9907ca8f143e273fa9eb7d84b25a))
-* **boards/shields:** Add settings for Rpi Pico and add tester_rpi_pico shield ([#2900](https://github.com/zmkfirmware/zmk/issues/2900)) ([ccf20a1](https://github.com/zmkfirmware/zmk/commit/ccf20a1f5c1534a197d32279abbe0eaf651099d8))
-* **boards:** add support for nrf52840dongle_nrf52840 ([#3011](https://github.com/zmkfirmware/zmk/issues/3011)) ([c7fae18](https://github.com/zmkfirmware/zmk/commit/c7fae18ae122b2465080507380dd55d096edd666))
-* **core:** (Optionally) use Zephyr keyboard input devices ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **core:** mapper for magic bootloader values. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **display:** Add thread name to dedicated display queue. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **docs:** Update New Behavior Guide ([#3107](https://github.com/zmkfirmware/zmk/issues/3107)) ([e34793e](https://github.com/zmkfirmware/zmk/commit/e34793e8c7193bc868b95ec38d78f67956f759cb))
-* **endpoints:** add "no endpoint" value ([6e7e0de](https://github.com/zmkfirmware/zmk/commit/6e7e0de2b621073392816b284ab4931bee709ee8))
-* **endpoints:** add "no endpoint" value ([#3140](https://github.com/zmkfirmware/zmk/issues/3140)) ([6e7e0de](https://github.com/zmkfirmware/zmk/commit/6e7e0de2b621073392816b284ab4931bee709ee8))
-* **layouts:** Add physical layout for Redox shield ([61de01a](https://github.com/zmkfirmware/zmk/commit/61de01abb00a73349a188ef2e10ad1cd040d31b3))
-* Move to zephyr v4.1 ([#3060](https://github.com/zmkfirmware/zmk/issues/3060)) ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **pointing:** Handle INPUT_BTN_TOUCH codes for mouse buttons ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **pointing:** Release pressed keys on disconnect ([#3204](https://github.com/zmkfirmware/zmk/issues/3204)) ([24487bd](https://github.com/zmkfirmware/zmk/commit/24487bd9744f504724089f0e1cec98431a2d3333))
-* **shields:** Add Studio support to boardsource3x4 ([#3154](https://github.com/zmkfirmware/zmk/issues/3154)) ([40e06f3](https://github.com/zmkfirmware/zmk/commit/40e06f3c0084751f7ae012a71d92d5801ac3b7a0))
-* **split:** Add HID indicators and physical layout set to Wired split ([#3103](https://github.com/zmkfirmware/zmk/issues/3103)) ([7738924](https://github.com/zmkfirmware/zmk/commit/773892434931b74bdf54474b73c909779daa9471))
-
-
-### Bug Fixes
-
-* Add "optional" folder to .gitignore ([#3141](https://github.com/zmkfirmware/zmk/issues/3141)) ([c099041](https://github.com/zmkfirmware/zmk/commit/c0990410da4c0a0c3776448e8c05ca2ce8778c8a))
-* **behaviors:** correctly handle sensor rotation remainder ([#3084](https://github.com/zmkfirmware/zmk/issues/3084)) ([958fa78](https://github.com/zmkfirmware/zmk/commit/958fa788067e18c2228d016fcd826000bb8f0320))
-* **boards:** Add xiao_ble sd_partition label for nosd snippet compat ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **boards:** Fix pillbug board.yml to report extension ([a23aa00](https://github.com/zmkfirmware/zmk/commit/a23aa009d7a07d67fe5609caca7372e16610f238))
-* **boards:** Remove nano overlays for old nice_nano_v2 board ID. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **boards:** Remove some references to old nice_nano_v2 board ID. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **boards:** Retore bootloader support on XIAO BLE. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **ci:** Better safeguards for ZMK variant build check ([#3277](https://github.com/zmkfirmware/zmk/issues/3277)) ([8feeb52](https://github.com/zmkfirmware/zmk/commit/8feeb52eafc716c1697cfe0515e98b78281c3543))
-* **ci:** disable nrf5340dk from being built in our CI ([#3066](https://github.com/zmkfirmware/zmk/issues/3066)) ([522971f](https://github.com/zmkfirmware/zmk/commit/522971f41d62d7e5d6664eb61c84d190781feeb9))
-* **ci:** Fix release please template bump ([#3021](https://github.com/zmkfirmware/zmk/issues/3021)) ([f3233c1](https://github.com/zmkfirmware/zmk/commit/f3233c1b60e4cb4c095572740bcbcaf7111eb804))
-* **ci:** Pin @actions/artifact to a compatible release ([#3230](https://github.com/zmkfirmware/zmk/issues/3230)) ([ada1542](https://github.com/zmkfirmware/zmk/commit/ada1542940c3a01c0866c9fe9c30f489bc087328))
-* **ci:** Prevent slash characters in artifact names. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **ci:** Skip build on empty build matrix ([#3271](https://github.com/zmkfirmware/zmk/issues/3271)) ([df2e979](https://github.com/zmkfirmware/zmk/commit/df2e979d7e03ba84a503e3d90975a599d484b9e0)), closes [#3179](https://github.com/zmkfirmware/zmk/issues/3179)
-* **core:** Don't force CBPRINTF_NANO, for proper formatting. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **core:** Generate correct keymap layer names for all builds ([#3047](https://github.com/zmkfirmware/zmk/issues/3047)) ([0b5a103](https://github.com/zmkfirmware/zmk/commit/0b5a103c187ad337b9f50d824667866c4d7252e1)), closes [#3045](https://github.com/zmkfirmware/zmk/issues/3045)
-* **core:** One tick kscan wait on RP2350 ([#3255](https://github.com/zmkfirmware/zmk/issues/3255)) ([9278505](https://github.com/zmkfirmware/zmk/commit/9278505975759e9cf01b4e6e8ead359b14a11400))
-* **core:** Set a system work queue stack size of 2048 by default ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **core:** support magic bootloader values for nRF52833 ([#3163](https://github.com/zmkfirmware/zmk/issues/3163)) ([308de56](https://github.com/zmkfirmware/zmk/commit/308de56fb938057da7648a411ce0dce780dfc3f1))
-* Disable Nordic dt-bindings header checks. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **display:** Adjust stack sizes for display usage. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **display:** Fix setting the small font for the mono theme. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **display:** port nice!view display code ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **docs:** Improve ZMK setup instructions ([#3209](https://github.com/zmkfirmware/zmk/issues/3209)) ([354cff9](https://github.com/zmkfirmware/zmk/commit/354cff9c36b49eee6abbb8a61e6b927539aebbf2))
-* **docs:** Tweak layer tap example to be clearer ([#3023](https://github.com/zmkfirmware/zmk/issues/3023)) ([919bce7](https://github.com/zmkfirmware/zmk/commit/919bce7962db78139415ccf0e80fb858c89adb3d))
-* Don't enable ZMK Display by default for a few shields ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **endpoints:** Add endpoint setting upgrade ([6e7e0de](https://github.com/zmkfirmware/zmk/commit/6e7e0de2b621073392816b284ab4931bee709ee8))
-* Fix redundant const warning ([#3139](https://github.com/zmkfirmware/zmk/issues/3139)) ([8987f39](https://github.com/zmkfirmware/zmk/commit/8987f3979d7877114ede2f34edb5570a6b454460))
-* **hid:** initialize missing d_scroll_x field in mouse report ([#3196](https://github.com/zmkfirmware/zmk/issues/3196)) ([abce9de](https://github.com/zmkfirmware/zmk/commit/abce9deab76124d72c61a824aaa1affc3dbc1260))
-* **keymap:** Fix overflow in get/set bindings ([#3205](https://github.com/zmkfirmware/zmk/issues/3205)) ([ab46f48](https://github.com/zmkfirmware/zmk/commit/ab46f48dde8aa70e44a2fc2d2a1b81ae703d4981))
-* nice!view built-in widgets render failure from insufficient memory ([#3243](https://github.com/zmkfirmware/zmk/issues/3243)) ([536375e](https://github.com/zmkfirmware/zmk/commit/536375e45ef6d01a9c194803525bf9dd5e119421)), closes [#3219](https://github.com/zmkfirmware/zmk/issues/3219)
-* **pointing:** Refactor for changes to input API ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* Refactor for new Zephyr PM API ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* Remove usage of renamed Kconfig from core coverage. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* replace removed `K_THREAD_STACK_MEMBER` with `K_KERNEL_STACK_MEMBER` ([#3218](https://github.com/zmkfirmware/zmk/issues/3218)) ([f6c629e](https://github.com/zmkfirmware/zmk/commit/f6c629e895bbe3957ec243afb80b11e1e4b4e503))
-* **sensors:** Initialize sensor data to 0 before fetching. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* Set default transport according to enabled transports ([6e7e0de](https://github.com/zmkfirmware/zmk/commit/6e7e0de2b621073392816b284ab4931bee709ee8))
-* **shields:** Proper transparent binding in sofle raise layer ([#3238](https://github.com/zmkfirmware/zmk/issues/3238)) ([5cfc67a](https://github.com/zmkfirmware/zmk/commit/5cfc67a33402b24ab893b8d71cef1af2a869adbb))
-* **split:** correct async UART RX buffer definition ([#3193](https://github.com/zmkfirmware/zmk/issues/3193)) ([36dbf46](https://github.com/zmkfirmware/zmk/commit/36dbf467644d4b4b6b9176241d42261d27fb18f2))
-* **split:** int to pointer cast in bas proxy ([#3105](https://github.com/zmkfirmware/zmk/issues/3105)) ([ece2ce1](https://github.com/zmkfirmware/zmk/commit/ece2ce11b8c7245fbe2b4e41ec9fa7a870632e6c))
-* **split:** Properly return from command handler ([#3120](https://github.com/zmkfirmware/zmk/issues/3120)) ([d32ffb0](https://github.com/zmkfirmware/zmk/commit/d32ffb0a335ece70a9ce3dc3ce014676534ee99b))
-* **split:** Use correct Kconfig for bumping TX buffers for discovery ([#3216](https://github.com/zmkfirmware/zmk/issues/3216)) ([9490391](https://github.com/zmkfirmware/zmk/commit/9490391e1e4010c83291d437b7f9a71ace244581)), closes [#3156](https://github.com/zmkfirmware/zmk/issues/3156)
-* **studio:** Allow setting UART RPC thread priority ([#3290](https://github.com/zmkfirmware/zmk/issues/3290)) ([e4fb39d](https://github.com/zmkfirmware/zmk/commit/e4fb39d4a6514fe90d44b1570f908bddc5df0ad2))
-* **studio:** avoid decoding buffer overflow ([#3185](https://github.com/zmkfirmware/zmk/issues/3185)) ([70ab6b2](https://github.com/zmkfirmware/zmk/commit/70ab6b243a90b556d113fcdd0c8de1ef3dccdc1e))
-* **studio:** Correct `memset` usage. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **studio:** Correct usage of thread analyzer API ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **studio:** Properly serialize GATT RPC indications. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **tests:** Fix BLE test to account for Zephyr changes ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **underglow:** Remove use of removed Kconfig WS2812 symbol ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **usb:** Adjust Kconfig settings for USB. ([c06fa48](https://github.com/zmkfirmware/zmk/commit/c06fa48ce59e016105d79c20942d085314502d8d))
-* **usb:** Prevent unexpected USB disconnection caused by USB SOF ([#3070](https://github.com/zmkfirmware/zmk/issues/3070)) ([118359c](https://github.com/zmkfirmware/zmk/commit/118359c83efa0758144489fd5e12cc6f5bdbad4c))
-
-
-### Documentation
-
-* Added documentation note on locking layers ([5138c6f](https://github.com/zmkfirmware/zmk/commit/5138c6fb14783b756c5a3e61581625c700f3555b))
-
-
-### Code Refactoring
-
-* **core:** Allow layer behaviors to "lock" layers on (https://github.com/zmkfirmware/zmk/pull/2717) ([5138c6f](https://github.com/zmkfirmware/zmk/commit/5138c6fb14783b756c5a3e61581625c700f3555b))
-
 ## [0.3.0](https://github.com/zmkfirmware/zmk/compare/v0.2.1...v0.3.0) (2025-08-01)
 
 

app/CMakeLists.txt

@@ -23,7 +23,6 @@ zephyr_syscall_header(${APPLICATION_SOURCE_DIR}/include/drivers/ext_power.h)
 # Add your source file to the "app" target. This must come after
 # find_package(Zephyr) which defines the target.
 target_include_directories(app PRIVATE include)
-add_subdirectory(src/boot)
 target_sources(app PRIVATE src/stdlib.c)
 target_sources(app PRIVATE src/activity.c)
 target_sources(app PRIVATE src/behavior.c)

app/Kconfig

@@ -5,17 +5,6 @@ mainmenu "ZMK Firmware"
 
 menu "ZMK"
 
-config ZMK_BOARD_COMPAT
-    bool
-    help
-      Hidden symbol used to hint that a board has been specifically
-      set up with various ZMK requirements in mind, e.g. settings
-      storage, bootloader integration, etc.
-
-      Failure to set this will warn users they may want to verify they
-      used a ZMK variant of an upstream board, or are using a board
-      properly migrated to a newer ZMK version.
-
 menu "Basic Keyboard Setup"
 
 config ZMK_KEYBOARD_NAME
@@ -42,10 +31,10 @@ config BT_DIS_PNP_VID
 config BT_DIS_PNP_PID
     default 0x615E
 
-config BT_DIS_MODEL_NUMBER_STR
+config BT_DIS_MODEL
     default ZMK_KEYBOARD_NAME
 
-config BT_DIS_MANUF_NAME_STR
+config BT_DIS_MANUF
     default "ZMK Project"
 
 # Hardware specific overrides
@@ -140,9 +129,7 @@ config ZMK_USB_BOOT
     bool "USB Boot Protocol Support"
     depends on ZMK_USB
     select USB_HID_BOOT_PROTOCOL
-
+    select USB_DEVICE_SOF
-config USB_DEVICE_INITIALIZE_AT_BOOT
-    default n
 
 if ZMK_USB
 
@@ -198,6 +185,10 @@ config BT_SMP_ALLOW_UNAUTH_OVERWRITE
 config BT_CTLR_PHY_2M
     default n if ZMK_BLE_EXPERIMENTAL_CONN
 
+# BT_TINYCRYPT_ECC is required for BT_SMP_SC_PAIR_ONLY when using HCI
+config BT_TINYCRYPT_ECC
+    default y if BT_HCI && !BT_CTLR
+
 config ZMK_BLE_THREAD_STACK_SIZE
     int "BLE notify thread stack size"
     default 768
@@ -228,6 +219,9 @@ config BT_GATT_NOTIFY_MULTIPLE
 config BT_GATT_AUTO_SEC_REQ
     default (ZMK_SPLIT_BLE && !ZMK_SPLIT_ROLE_CENTRAL)
 
+config BT_DEVICE_APPEARANCE
+    default 961
+
 config BT_PERIPHERAL_PREF_MIN_INT
     default 6
 
@@ -484,15 +478,13 @@ endmenu
 
 menu "Advanced"
 
-rsource "src/boot/Kconfig"
-
 menu "Initialization Priorities"
 
 if USB_DEVICE_STACK
 
 config ZMK_USB_INIT_PRIORITY
     int "USB Init Priority"
-    default 96
+    default 94
 
 config ZMK_USB_HID_INIT_PRIORITY
     int "USB HID Init Priority"
@@ -661,13 +653,6 @@ endmenu # Advanced
 
 endmenu # ZMK
 
-if SOC_FAMILY_NORDIC_NRF
-
-config NRF_SOC_VALIDATE_HEADERS_DISABLED
-    default y
-
-endif
-
 config KERNEL_BIN_NAME
     default "zmk"
 
@@ -702,6 +687,11 @@ config ZMK_KEYMAP_SENSORS_DEFAULT_TRIGGERS_PER_ROTATION
 
 endif # ZMK_KEYMAP_SENSORS
 
+choice CBPRINTF_IMPLEMENTATION
+    default CBPRINTF_NANO
+
+endchoice
+
 module = ZMK
 module-str = zmk
 source "subsys/logging/Kconfig.template.log_config"
@@ -715,6 +705,8 @@ rsource "boards/shields/*/Kconfig.shield"
 # Duplicated from Kconfig.zephyr
 osource "$(KCONFIG_BINARY_DIR)/Kconfig.shield.defconfig"
 
+source "$(BOARD_DIR)/Kconfig.defconfig"
+
 # This loads board and shield Kconfigs found under zmk-config/config/
 osource "$(ZMK_CONFIG)/boards/shields/*/Kconfig.defconfig"
 osource "$(ZMK_CONFIG)/boards/shields/*/Kconfig.shield"

app/Kconfig.defaults

@@ -2,12 +2,8 @@
 # SPDX-License-Identifier: MIT
 
 config SYSTEM_WORKQUEUE_STACK_SIZE
-    default 3072 if ZMK_DISPLAY
+    default 2048 if SOC_RP2040
-    default 2048
+    default 2048 if ZMK_BLE
-
-# Basic
-config BT_DEVICE_APPEARANCE
-    default 961
 
 # HID
 if ZMK_HID_REPORT_TYPE_HKRO
@@ -114,5 +110,4 @@ config ZMK_BATTERY_REPORT_INTERVAL
     default 60
 
 # Imports
-rsource "src/boot/Kconfig.defaults"
 rsource "src/split/Kconfig.defaults"

app/VERSION

@@ -3,7 +3,7 @@ VERSION_MAJOR = 0
 # x-release-please-end
 
 # x-release-please-start-minor
-VERSION_MINOR = 4
+VERSION_MINOR = 3
 # x-release-please-end
 
 # x-release-please-start-patch

app/boards/01space_rp2040_042lcd.conf

@@ -0,0 +1,6 @@
+CONFIG_ZMK_DISPLAY=y
+CONFIG_LV_FONT_UNSCII_8=n
+CONFIG_ZMK_USB=y
+CONFIG_I2C=y
+CONFIG_I2C_DW=y
+CONFIG_LV_Z_VDB_SIZE=50

app/boards/01space_rp2040_042lcd.overlay

@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2023 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+&xiao_serial { status = "disabled"; };

app/boards/adafruit/kb2040/Kconfig.adafruit_kb2040

@@ -1,9 +0,0 @@
-# Copyright (c) 2026 The ZMK Contributors
-# SPDX-License-Identifier: MIT
-
-config BOARD_ADAFRUIT_KB2040
-    select ZMK_BOARD_COMPAT if BOARD_ADAFRUIT_KB2040_RP2040_ZMK
-    imply RETAINED_MEM if BOARD_ADAFRUIT_KB2040_RP2040_ZMK
-    imply RETENTION if BOARD_ADAFRUIT_KB2040_RP2040_ZMK
-    imply RETENTION_BOOT_MODE if BOARD_ADAFRUIT_KB2040_RP2040_ZMK
-

app/boards/adafruit/kb2040/adafruit_kb2040_zmk_defconfig

@@ -1,23 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=125000000
-
-# Enable reset by default
-CONFIG_RESET=y
-
-# Enable clock control by default
-CONFIG_CLOCK_CONTROL=y
-
-# Code partition needed to target the correct flash range
-CONFIG_USE_DT_CODE_PARTITION=y
-
-# Output UF2 by default, native bootloader supports it.
-CONFIG_BUILD_OUTPUT_UF2=y
-
-# USB HID
-CONFIG_ZMK_USB=y
-
-# Bootloader Support
-CONFIG_RETAINED_MEM=y
-CONFIG_RETENTION=y
-CONFIG_RETENTION_BOOT_MODE=y

app/boards/adafruit/kb2040/board.yml

@@ -1,5 +0,0 @@
-board:
-  extend: adafruit_kb2040
-  variants:
-    - name: zmk
-      qualifier: rp2040

app/boards/adafruit/qt_py_rp2040/Kconfig.adafruit_qt_py_rp2040

@@ -1,9 +0,0 @@
-# Copyright (c) 2026 The ZMK Contributors
-# SPDX-License-Identifier: MIT
-
-config BOARD_ADAFRUIT_QT_PY_RP2040
-    select ZMK_BOARD_COMPAT if BOARD_ADAFRUIT_QT_PY_RP2040_RP2040_ZMK
-    imply RETAINED_MEM if BOARD_ADAFRUIT_QT_PY_RP2040_RP2040_ZMK
-    imply RETENTION if BOARD_ADAFRUIT_QT_PY_RP2040_RP2040_ZMK
-    imply RETENTION_BOOT_MODE if BOARD_ADAFRUIT_QT_PY_RP2040_RP2040_ZMK
-

app/boards/adafruit/qt_py_rp2040/adafruit_qt_py_rp2040_zmk.dts

@@ -1,10 +0,0 @@
-/*
- * Copyright (c) 2023 The ZMK Contributors
- *
- * SPDX-License-Identifier: MIT
- */
-
-#include <../boards/adafruit/qt_py_rp2040/adafruit_qt_py_rp2040.dts>
-#include <arm/raspberrypi/rp2040-boot-mode-retention.dtsi>
-
-&xiao_serial { status = "disabled"; };

app/boards/adafruit/qt_py_rp2040/adafruit_qt_py_rp2040_zmk_defconfig

@@ -1,23 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=125000000
-
-# Enable reset by default
-CONFIG_RESET=y
-
-# Enable clock control by default
-CONFIG_CLOCK_CONTROL=y
-
-# Code partition needed to target the correct flash range
-CONFIG_USE_DT_CODE_PARTITION=y
-
-# Output UF2 by default, native bootloader supports it.
-CONFIG_BUILD_OUTPUT_UF2=y
-
-# USB HID
-CONFIG_ZMK_USB=y
-
-# Bootloader Support
-CONFIG_RETAINED_MEM=y
-CONFIG_RETENTION=y
-CONFIG_RETENTION_BOOT_MODE=y

app/boards/adafruit/qt_py_rp2040/board.yml

@@ -1,5 +0,0 @@
-board:
-  extend: adafruit_qt_py_rp2040
-  variants:
-    - name: zmk
-      qualifier: rp2040

app/boards/adafruit_kb2040.conf

@@ -0,0 +1,4 @@
+CONFIG_CONSOLE=n
+CONFIG_SERIAL=n
+CONFIG_UART_CONSOLE=n
+CONFIG_ZMK_USB=y

app/boards/adafruit_kb2040.overlay

@@ -4,7 +4,4 @@
  * SPDX-License-Identifier: MIT
  */
 
-#include <../boards/adafruit/kb2040/adafruit_kb2040.dts>
-#include <arm/raspberrypi/rp2040-boot-mode-retention.dtsi>
-
 &pro_micro_serial { status = "disabled"; };

app/boards/adafruit_qt_py_rp2040.conf

@@ -0,0 +1,4 @@
+CONFIG_CONSOLE=n
+CONFIG_SERIAL=n
+CONFIG_UART_CONSOLE=n
+CONFIG_ZMK_USB=y

app/boards/adafruit_qt_py_rp2040.overlay

@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2023 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+&xiao_serial { status = "disabled"; };

app/boards/arm/adafruit_kb2040/adafruit_kb2040.zmk.yml

@@ -1,5 +1,5 @@
 file_format: "1"
-id: adafruit_kb2040//zmk
+id: adafruit_kb2040
 name: Adafruit KB2040
 type: board
 arch: arm

app/boards/arm/adafruit_qt_py_rp2040/adafruit_qt_py_rp2040.zmk.yml

@@ -1,5 +1,5 @@
 file_format: "1"
-id: adafruit_qt_py_rp2040//zmk
+id: adafruit_qt_py_rp2040
 name: Adafruit QT Py RP2040
 type: board
 arch: arm

app/boards/arm/adv360pro/Kconfig

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: MIT
+
+config BOARD_ENABLE_DCDC
+    bool "Enable DCDC mode"
+    select SOC_DCDC_NRF52X
+    default y
+    depends on BOARD_ADV360PRO_LEFT || BOARD_ADV360PRO_RIGHT

app/boards/arm/adv360pro/Kconfig.board

@@ -0,0 +1,12 @@
+#
+# Copyright (c) 2023 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+config BOARD_ADV360PRO_LEFT
+    bool "adv360pro_left"
+    depends on SOC_NRF52840_QIAA
+
+config BOARD_ADV360PRO_RIGHT
+    bool "adv360pro_right"
+    depends on SOC_NRF52840_QIAA

app/boards/arm/adv360pro/adv360pro.dtsi

@@ -7,7 +7,6 @@
 
 /dts-v1/;
 #include <nordic/nrf52840_qiaa.dtsi>
-#include <common/nordic/nrf52840_uf2_boot_mode.dtsi>
 
 #include <dt-bindings/led/led.h>
 #include <dt-bindings/zmk/matrix_transform.h>
@@ -72,10 +71,6 @@
 
 };
 
-&reg1 {
-    regulator-initial-mode = <NRF5X_REG_MODE_DCDC>;
-};
-
 &pwm0 {
     status = "okay";
     pinctrl-0 = <&pwm0_default>;

app/boards/arm/adv360pro/adv360pro.zmk.yml

@@ -13,5 +13,5 @@ outputs:
   - usb
   - ble
 siblings:
-  - adv360pro_left//zmk
+  - adv360pro_left
-  - adv360pro_right//zmk
+  - adv360pro_right

app/boards/arm/adv360pro/adv360pro_left_defconfig

@@ -3,6 +3,10 @@
 # SPDX-License-Identifier: MIT
 #
 
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_ADV360PRO_LEFT=y
+
 # Enable MPU
 CONFIG_ARM_MPU=y
 
@@ -28,6 +32,7 @@ CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
 CONFIG_CLOCK_CONTROL_NRF_K32SRC_150PPM=y
 
 #RGB leds config
+CONFIG_WS2812_STRIP=y
 CONFIG_ZMK_RGB_UNDERGLOW=y
 CONFIG_ZMK_RGB_UNDERGLOW_EXT_POWER=y
 CONFIG_ZMK_RGB_UNDERGLOW_ON_START=n

app/boards/arm/adv360pro/adv360pro_right_defconfig

@@ -3,6 +3,10 @@
 # SPDX-License-Identifier: MIT
 #
 
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_ADV360PRO_RIGHT=y
+
 # Enable MPU
 CONFIG_ARM_MPU=y
 
@@ -28,6 +32,7 @@ CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
 CONFIG_CLOCK_CONTROL_NRF_K32SRC_150PPM=y
 
 #RGB leds config
+CONFIG_WS2812_STRIP=y
 CONFIG_ZMK_RGB_UNDERGLOW=y
 CONFIG_ZMK_RGB_UNDERGLOW_EXT_POWER=y
 CONFIG_ZMK_RGB_UNDERGLOW_ON_START=n

app/boards/arm/bdn9/Kconfig.board

@@ -0,0 +1,8 @@
+# keeb.io BDN9 board configuration
+
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config BOARD_BDN9
+    bool "BDN9 rev2"
+    depends on SOC_STM32F072XB

app/boards/arm/bdn9/Kconfig.defconfig

@@ -11,4 +11,8 @@ config BOARD
 config ZMK_KEYBOARD_NAME
     default "BDN9 Rev2"
 
+config ZMK_RGB_UNDERGLOW
+    select SPI
+    select WS2812_STRIP
+
 endif # BOARD_BDN9

app/boards/arm/bdn9/bdn9_rev2.dts

@@ -11,7 +11,7 @@
 
 #include <dt-bindings/zmk/matrix_transform.h>
 
-#include "bdn9-layouts.dtsi"
+#include "bdn9_rev2-layouts.dtsi"
 
 &physical_layout0 {
     transform = <&matrix_transform0>;

app/boards/arm/bdn9/bdn9_rev2.yml

@@ -0,0 +1,11 @@
+file_format: "1"
+id: bdn9_rev2
+name: BDN9 Rev2
+type: board
+arch: arm
+features:
+  - keys
+  - encoder
+outputs:
+  - usb
+url: https://keeb.io/products/bdn9-rev-2-3x3-9-key-macropad-rotary-encoder-and-rgb

app/boards/arm/bdn9/bdn9_rev2.zmk.yml

@@ -1,6 +1,6 @@
 file_format: "1"
-id: bdn9//zmk
+id: bdn9_rev2
-name: BDN9 (Rev2)
+name: BDN9 Rev2
 type: board
 arch: arm
 outputs:
@@ -9,6 +9,3 @@ features:
   - keys
   - encoder
 url: https://keeb.io/collections/bdn9-collection/products/bdn9-rev-2-3x3-9-key-macropad-rotary-encoder-and-rgb
-revisions:
-  - "2.0.0"
-default_revision: "2.0.0"

app/boards/arm/bdn9/bdn9_rev2_defconfig

@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: MIT
 
+CONFIG_SOC_SERIES_STM32F0X=y
+CONFIG_SOC_STM32F072XB=y
 # 72MHz system clock
 CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=72000000
 
@@ -12,7 +14,6 @@ CONFIG_PINCTRL=y
 # Poll to avoid interrupt overlap issues
 CONFIG_ZMK_KSCAN_DIRECT_POLLING=y
 
-CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=1536
 CONFIG_ISR_STACK_SIZE=1024
 
 # clock configuration

app/boards/arm/blackpill_f401cc/blackpill_f401cc.zmk.yml

@@ -1,5 +1,5 @@
 file_format: "1"
-id: blackpill_f401cc//zmk
+id: blackpill_f401cc
 name: BlackPill F401CC
 type: board
 arch: arm

app/boards/arm/blackpill_f401ce/blackpill_f401ce.zmk.yml

@@ -1,5 +1,5 @@
 file_format: "1"
-id: blackpill_f401ce//zmk
+id: blackpill_f401ce
 name: BlackPill F401CE
 type: board
 arch: arm

app/boards/arm/blackpill_f411ce/blackpill_f411ce.zmk.yml

@@ -1,5 +1,5 @@
 file_format: "1"
-id: blackpill_f411ce//zmk
+id: blackpill_f411ce
 name: BlackPill F411CE
 type: board
 arch: arm

app/boards/arm/bluemicro840/Kconfig

@@ -4,5 +4,5 @@ config BOARD_ENABLE_DCDC
     bool "Enable DCDC mode"
     select SOC_DCDC_NRF52X
     default y
-    depends on BOARD_BLUEMICRO840
+    depends on BOARD_BLUEMICRO840_V1
 

app/boards/arm/bluemicro840/Kconfig.board

@@ -0,0 +1,8 @@
+# BlueMicro840 board configuration
+
+# Copyright (c) 2020 Pete Johanson, Derek Schmell
+# SPDX-License-Identifier: MIT
+
+config BOARD_BLUEMICRO840_V1
+    bool "BlueMicro840_V1"
+    depends on SOC_NRF52840_QIAA

app/boards/arm/bluemicro840/Kconfig.defconfig

@@ -3,7 +3,10 @@
 # Copyright (c) 2020 Pete Johanson, Derek Schmell
 # SPDX-License-Identifier: MIT
 
-if BOARD_BLUEMICRO840
+if BOARD_BLUEMICRO840_V1
+
+config BOARD
+    default "bluemicro840_v1"
 
 if USB_DEVICE_STACK
 
@@ -15,4 +18,4 @@ endif # USB_DEVICE_STACK
 config BT_CTLR
     default BT
 
-endif # BOARD_BLUEMICRO840
+endif # BOARD_BLUEMICRO840_V1

app/boards/arm/bluemicro840/bluemicro840_v1.dts

@@ -6,9 +6,8 @@
 
 /dts-v1/;
 #include <nordic/nrf52840_qiaa.dtsi>
-
 #include "arduino_pro_micro_pins.dtsi"
-#include "bluemicro840-pinctrl.dtsi"
+#include "bluemicro840_v1-pinctrl.dtsi"
 
 / {
     model = "BlueMicro840_V1";
@@ -18,6 +17,7 @@
         zephyr,code-partition = &code_partition;
         zephyr,sram = &sram0;
         zephyr,flash = &flash0;
+        zmk,battery = &vbatt;
     };
 
     leds {
@@ -26,6 +26,21 @@
             gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
         };
     };
+
+    // Node name must match original "EXT_POWER" label to preserve user settings.
+    EXT_POWER {
+        compatible = "zmk,ext-power-generic";
+        init-delay-ms = <20>;
+        control-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
+    };
+
+    vbatt: vbatt {
+        compatible = "zmk,battery-voltage-divider";
+        io-channels = <&adc 7>;
+        output-ohms = <2000000>;
+        full-ohms = <(2000000 + 806000)>;
+    };
+
 };
 
 &adc {

app/boards/arm/bluemicro840/bluemicro840_v1.yaml

@@ -1,4 +1,4 @@
-identifier: bluemicro840
+identifier: bluemicro840_v1
 name: BlueMicro840_V1
 type: mcu
 arch: arm

app/boards/arm/bluemicro840/bluemicro840_v1.zmk.yml

@@ -1,5 +1,5 @@
 file_format: "1"
-id: bluemicro840//zmk
+id: bluemicro840_v1
 name: BlueMicro840 v1
 type: board
 arch: arm

app/boards/arm/bluemicro840/bluemicro840_v1_defconfig

@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: MIT
 
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_BLUEMICRO840_V1=y
+
 # Enable MPU
 CONFIG_ARM_MPU=y
 
@@ -17,8 +21,6 @@ CONFIG_SETTINGS_NVS=y
 CONFIG_FLASH=y
 CONFIG_FLASH_PAGE_LAYOUT=y
 CONFIG_FLASH_MAP=y
-CONFIG_CLOCK_CONTROL_NRF=y
-CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
 
 CONFIG_ZMK_USB=y
 CONFIG_ZMK_BLE=y

app/boards/arm/boardsource_blok/boardsource_blok.zmk.yml

@@ -0,0 +1,9 @@
+file_format: "1"
+id: boardsource_blok
+name: BoardSource blok
+type: board
+arch: arm
+outputs:
+  - usb
+url: https://peg.software/docs/blok
+exposes: [pro_micro]

app/boards/arm/bt60/Kconfig

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: MIT
+
+config BOARD_ENABLE_DCDC
+    bool "Enable DCDC mode"
+    select SOC_DCDC_NRF52X
+    default y
+    depends on (BOARD_BT60_V1_HS || BOARD_BT60_V1)

app/boards/arm/bt60/Kconfig.board

@@ -0,0 +1,12 @@
+# BT60 board configuration
+
+# Copyright (c) 2021 Polarity Works
+# SPDX-License-Identifier: MIT
+
+config BOARD_BT60_V1
+    bool "bt60"
+    depends on SOC_NRF52840_QIAA
+
+config BOARD_BT60_V1_HS
+    bool "bt60 hotswap"
+    depends on SOC_NRF52840_QIAA

app/boards/arm/bt60/Kconfig.defconfig

@@ -1,10 +1,10 @@
-# Copyright (c) 2022 The ZMK Contributors
+# Copyright (c) 2021 Polarity Works
 # SPDX-License-Identifier: MIT
 
-config ZMK_KEYBOARD_NAME
+if BOARD_BT60_V1_HS || BOARD_BT60_V1
-    default "BT75" if BOARD_BT75
 
-if BOARD_BT75
+config BOARD
+    default "bt60"
 
 if USB
 
@@ -19,4 +19,7 @@ endif # USB
 config BT_CTLR
     default BT
 
-endif # BOARD_BT75
+config ZMK_KEYBOARD_NAME
+    default "BT60"
+
+endif # BOARD_BT60

app/boards/arm/bt60/bt60.dtsi

@@ -1,14 +1,17 @@
 /*
-* Copyright (c) 2022 The ZMK Contributors
+* Copyright (c) 2021 Polarity Works
 *
 * SPDX-License-Identifier: MIT
 */
 
 /dts-v1/;
 #include <nordic/nrf52840_qiaa.dtsi>
-#include <common/nordic/nrf52840_uf2_boot_mode.dtsi>
+#include <dt-bindings/zmk/matrix_transform.h>
 
 / {
+    model = "BT60";
+    compatible = "polarityworks,bt60";
+
     chosen {
         zephyr,code-partition = &code_partition;
         zephyr,sram = &sram0;
@@ -16,9 +19,35 @@
         zmk,battery = &vbatt;
     };
 
+    sensors: sensors {
+        compatible = "zmk,keymap-sensors";
+        sensors = <&left_encoder>;
+        triggers-per-rotation = <20>;
+    };
+
+
+
+    left_encoder: encoder_left {
+        compatible = "alps,ec11";
+        a-gpios = <&gpio1 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
+        b-gpios = <&gpio1 3 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
+        steps = <80>;
+        status = "okay";
+    };
+
+
+    leds {
+        compatible = "gpio-leds";
+        blue_led: led_0 {
+            gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
+        };
+    };
+
     vbatt: vbatt {
         compatible = "zmk,battery-voltage-divider";
         io-channels = <&adc 2>;
+        output-ohms = <2000000>;
+        full-ohms = <(2000000 + 806000)>;
     };
 };
 
@@ -42,6 +71,7 @@ zephyr_udc0: &usbd {
     status = "okay";
 };
 
+
 &flash0 {
     /*
      * For more information, see:

app/boards/arm/bt60/bt60_v1.dts

@@ -4,7 +4,8 @@
 * SPDX-License-Identifier: MIT
 */
 
-#include "bt60_1_0_0.dtsi"
+/dts-v1/;
+#include "bt60.dtsi"
 #include <layouts/common/60percent/all1u.dtsi>
 #include <layouts/common/60percent/ansi.dtsi>
 #include <layouts/common/60percent/hhkb.dtsi>

app/boards/arm/bt60/bt60_v1.keymap

@@ -20,7 +20,7 @@
     #elif defined(HHKB)
         zmk,physical-layout = &layout_60_hhkb;
     #else
-    #error "Layout not defined, please define a layout by uncommenting the appropriate line in bt60.keymap"
+    #error "Layout not defined, please define a layout by uncommenting the appropriate line in bt60_v1.keymap"
     #endif
     };
 
@@ -147,7 +147,7 @@
             sensor-bindings = <&inc_dec_kp C_VOL_UP C_VOL_DN>;
         };
         #else
-        #error "Layout not defined, please define a layout by uncommenting the appropriate line in bt60.keymap"
+        #error "Layout not defined, please define a layout by uncommenting the appropriate line in bt60_v2.keymap"
         #endif
     };
 };

app/boards/arm/bt60/bt60_v1.yaml

@@ -1,5 +1,5 @@
-identifier: puchi_ble
+identifier: bt60_v1
-name: puchi_ble
+name: BT60 V1 Soldered
 type: mcu
 arch: arm
 toolchain:

app/boards/arm/bt60/bt60_v1.zmk.yml

@@ -0,0 +1,13 @@
+file_format: "1"
+id: bt60_v1
+name: BT60 V1 Soldered
+type: board
+arch: arm
+features:
+  - keys
+  - encoder
+  - studio
+outputs:
+  - usb
+  - ble
+url: https://polarityworks.com

app/boards/arm/bt60/bt60_v1_defconfig

@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: MIT
 
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_BT60_V1=y
+
 # Enable MPU
 CONFIG_ARM_MPU=y
 

app/boards/arm/bt60/bt60_v1_hs.dts

@@ -4,8 +4,8 @@
 * SPDX-License-Identifier: MIT
 */
 
-#include "bt60_nrf52840_zmk.dts"
+/dts-v1/;
-#include "bt60_1_0_0.dtsi"
+#include "bt60.dtsi"
 #include <layouts/common/60percent/ansi.dtsi>
 
 / {

app/boards/arm/bt60/bt60_v1_hs.yaml

@@ -0,0 +1,15 @@
+identifier: bt60_v1_hs
+name: BT60 V1 Hotswap
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+supported:
+  - adc
+  - usb_device
+  - ble
+  - ieee802154
+  - pwm
+  - watchdog

app/boards/arm/bt60/bt60_v1_hs.zmk.yml

@@ -1,5 +1,5 @@
 file_format: "1"
-id: bt60_hs//zmk
+id: bt60_v1_hs
 name: BT60 V1 Hotswap
 type: board
 arch: arm

app/boards/arm/bt60/bt60_v1_hs_defconfig

@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: MIT
 
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_BT60_V1_HS=y
+
 # Enable MPU
 CONFIG_ARM_MPU=y
 

app/boards/arm/ckp/Kconfig

@@ -0,0 +1,8 @@
+# Copyright (c) 2022 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config BOARD_ENABLE_DCDC
+    bool "Enable DCDC mode"
+    select SOC_DCDC_NRF52X
+    default y
+    depends on BOARD_BT60_V2 || BOARD_BT65_V1 || BOARD_BT75_V1

app/boards/arm/ckp/Kconfig.board

@@ -0,0 +1,16 @@
+# CKP boards configuration
+
+# Copyright (c) 2022 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config BOARD_BT60_V2
+    bool "bt60_v2"
+    depends on SOC_NRF52840_QIAA
+
+config BOARD_BT65_V1
+    bool "bt65_v1"
+    depends on SOC_NRF52840_QIAA
+
+config BOARD_BT75_V1
+    bool "bt75_v1"
+    depends on SOC_NRF52840_QIAA

app/boards/arm/ckp/Kconfig.defconfig

@@ -0,0 +1,28 @@
+# Copyright (c) 2022 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config BOARD
+    default "bt60_v2" if BOARD_BT60_V2
+    default "bt65_v1" if BOARD_BT65_V1
+    default "bt75_v1" if BOARD_BT75_V1
+config ZMK_KEYBOARD_NAME
+    default "BT60 V2" if BOARD_BT60_V2
+    default "BT65" if BOARD_BT65_V1
+    default "BT75" if BOARD_BT75_V1
+
+if BOARD_BT60_V2 || BOARD_BT65_V1 || BOARD_BT75_V1
+
+if USB
+
+config USB_NRFX
+    default y
+
+config USB_DEVICE_STACK
+    default y
+
+endif # USB
+
+config BT_CTLR
+    default BT
+
+endif # BOARD_BT60_V2 || BOARD_BT65_V1 || BOARD_BT75_V1

app/boards/arm/ckp/bt60_v2.dts

@@ -4,7 +4,8 @@
 * SPDX-License-Identifier: MIT
 */
 
-#include "../common/ckp.dtsi"
+/dts-v1/;
+#include "ckp.dtsi"
 #include <layouts/common/60percent/all1u.dtsi>
 #include <layouts/common/60percent/ansi.dtsi>
 #include <layouts/common/60percent/hhkb.dtsi>
@@ -13,7 +14,7 @@
 
 / {
   model = "BT60_V2";
-  compatible = "polarityworks,bt60";
+  compatible = "polarityworks,bt60_v2";
 
   chosen {
     zmk,physical-layout = &layout_60_ansi;

app/boards/arm/ckp/bt60_v2.keymap

@@ -20,7 +20,7 @@
   #elif defined(HHKB)
     zmk,physical-layout = &layout_60_hhkb;
   #else
-  #error "Layout not defined, please define a layout by uncommenting the appropriate line in bt60.keymap"
+  #error "Layout not defined, please define a layout by uncommenting the appropriate line in bt60_v2.keymap"
   #endif
   };
 
@@ -170,7 +170,7 @@
       sensor-bindings = <&inc_dec_kp C_VOL_UP C_VOL_DN>;
     };
     #else
-    #error "Layout not defined, please define a layout by uncommenting the appropriate line in bt60.keymap"
+    #error "Layout not defined, please define a layout by uncommenting the appropriate line in bt60_v2.keymap"
     #endif
 
   };

app/boards/arm/ckp/bt60_v2.yaml

@@ -1,4 +1,4 @@
-identifier: bt60
+identifier: bt60_v2
 name: BT60 V2
 type: mcu
 arch: arm

app/boards/arm/ckp/bt60_v2.zmk.yml

@@ -1,5 +1,5 @@
 file_format: "1"
-id: bt60//zmk
+id: bt60_v2
 name: BT60 V2
 type: board
 arch: arm
@@ -12,7 +12,4 @@ features:
 outputs:
   - usb
   - ble
-revisions:
-  - 2.0.0
-  - 1.0.0
 url: https://polarityworks.com/btckp

app/boards/arm/ckp/bt60_v2_defconfig

@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: MIT
 
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_BT60_V2=y
+
 # Enable MPU
 CONFIG_ARM_MPU=y
 
@@ -28,6 +32,8 @@ CONFIG_ZMK_RGB_UNDERGLOW=y
 CONFIG_ZMK_RGB_UNDERGLOW_EXT_POWER=y
 CONFIG_ZMK_RGB_UNDERGLOW_ON_START=y
 CONFIG_ZMK_RGB_UNDERGLOW_HUE_START=262
+CONFIG_WS2812_STRIP=y
+CONFIG_SPI=y
 
 CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
 

app/boards/arm/ckp/bt65_v1.dts

@@ -5,11 +5,7 @@
 */
 
 /dts-v1/;
-#include <nordic/nrf52840_qiaa.dtsi>
+#include "ckp.dtsi"
-#include <common/nordic/nrf52840_uf2_boot_mode.dtsi>
-
-#include "../common/ckp-base.dtsi"
-#include "../common/ckp.dtsi"
 #include <layouts/common/65percent/all1u.dtsi>
 #include <layouts/common/65percent/ansi.dtsi>
 #include <layouts/common/65percent/iso.dtsi>
@@ -18,7 +14,7 @@
 
 / {
   model = "BT65_V1";
-  compatible = "polarityworks,bt65";
+  compatible = "polarityworks,bt65_v1";
 
   chosen {
     zmk,physical-layout = &layout_65_ansi;