diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..ccc2930
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,2 @@
+/coverage
+/node_modules
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 51231bf..37dca54 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -2,35 +2,24 @@
 
 Hi there! We're thrilled that you'd like to contribute to this project. Your help is essential for keeping it great.
 
-Contributions to this project are [released](https://help.github.com/articles/github-terms-of-service/#6-contributions-under-repository-license) to the public under the [project's open source license](LICENSE).
+Contributions to this project are [released](https://docs.github.com/en/github/site-policy/github-terms-of-service#6-contributions-under-repository-license)
+to the public under the [project's open source license](LICENSE).
 
 ## Submitting a pull request
 
 1. [Fork](https://github.com/docker/setup-buildx-action/fork) and clone the repository
 2. Configure and install the dependencies: `yarn install`
 3. Create a new branch: `git checkout -b my-branch-name`
-4. Make your change, add tests, and make sure the tests still pass
-5. Run pre-checkin: `yarn run pre-checkin`
-6. Push to your fork and [submit a pull request](https://github.com/docker/setup-buildx-action/compare)
-7. Pat yourself on the back and wait for your pull request to be reviewed and merged.
-
-## Container based developer flow
-
-If you don't want to maintain a Node developer environment that fits this project you can use containerized commands instead of invoking yarn directly.
-
-```
-# format code and build javascript artifacts
-docker buildx bake pre-checkin
-
-# validate all code has correctly formatted and built
-docker buildx bake validate
-
-# run tests
-docker buildx bake test
-```
+4. Make your changes
+5. Make sure the tests pass: `docker buildx bake test`
+6. Format code and build javascript artifacts: `docker buildx bake pre-checkin`
+7. Validate all code has correctly formatted and built: `docker buildx bake validate`
+8. Push to your fork and [submit a pull request](https://github.com/docker/setup-buildx-action/compare)
+9. Pat your self on the back and wait for your pull request to be reviewed and merged.
 
 Here are a few things you can do that will increase the likelihood of your pull request being accepted:
 
+- Write tests.
 - Make sure the `README.md` and any other relevant **documentation are kept up-to-date**.
 - We try to follow [SemVer v2.0.0](https://semver.org/). Randomly breaking public APIs is not an option.
 - Keep your change as focused as possible. If there are multiple changes you would like to make that are not dependent upon each other, consider submitting them as **separate pull requests**.
@@ -39,5 +28,5 @@ Here are a few things you can do that will increase the likelihood of your pull
 ## Resources
 
 - [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)
-- [Using Pull Requests](https://help.github.com/articles/about-pull-requests/)
-- [GitHub Help](https://help.github.com)
+- [Using Pull Requests](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/about-pull-requests)
+- [GitHub Help](https://docs.github.com/en)
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
index 1c2136d..d50d109 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -30,4 +30,5 @@ about: Create a report to help us improve
 
 ### Logs
 
-> Download the [log file of your build](https://help.github.com/en/actions/configuring-and-managing-workflows/managing-a-workflow-run#downloading-logs) and [attach it](https://help.github.com/en/github/managing-your-work-on-github/file-attachments-on-issues-and-pull-requests) to this issue.
+> Download the [log file of your build](https://docs.github.com/en/actions/managing-workflow-runs/using-workflow-run-logs#downloading-logs)
+> and [attach it](https://docs.github.com/en/github/managing-your-work-on-github/file-attachments-on-issues-and-pull-requests) to this issue.
diff --git a/.github/setup-buildx-action.png b/.github/setup-buildx-action.png
index 86fe6d3..72fbeda 100644
Binary files a/.github/setup-buildx-action.png and b/.github/setup-buildx-action.png differ
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c1baf1f..ac756a2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,18 +1,18 @@
 name: ci
 
 on:
+  schedule:
+    - cron: '0 10 * * *' # everyday at 10am
   push:
     branches:
-      - master
-      - releases/v*
-    paths-ignore:
-      - "**.md"
+      - 'master'
+      - 'releases/v*'
+    tags:
+      - 'v*'
   pull_request:
     branches:
-      - master
-      - releases/v*
-    paths-ignore:
-      - "**.md"
+      - 'master'
+      - 'releases/v*'
 
 jobs:
   main:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 54e6851..93790e9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -3,28 +3,14 @@ name: test
 on:
   push:
     branches:
-      - master
-      - releases/v*
-    paths-ignore:
-      - "**.md"
+      - 'master'
+      - 'releases/v*'
   pull_request:
-    paths-ignore:
-      - "**.md"
+    branches:
+      - 'master'
+      - 'releases/v*'
 
 jobs:
-  test-containerized:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v2
-      -
-        name: Validate
-        run: docker buildx bake validate
-      -
-        name: Test
-        run: docker buildx bake test
-
   test:
     runs-on: ubuntu-latest
     steps:
@@ -32,15 +18,17 @@ jobs:
         name: Checkout
         uses: actions/checkout@v2
       -
-        name: Install
-        run: yarn install
+        name: Validate
+        uses: docker/bake-action@v1
+        with:
+          targets: validate
       -
         name: Test
-        run: yarn run test
+        uses: docker/bake-action@v1
+        with:
+          targets: test
       -
         name: Upload coverage
         uses: codecov/codecov-action@v1
-        if: success()
         with:
-          token: ${{ secrets.CODECOV_TOKEN }}
           file: ./coverage/clover.xml
diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index dba2525..0000000
--- a/Dockerfile
+++ /dev/null
@@ -1,52 +0,0 @@
-#syntax=docker/dockerfile:1.2
-
-FROM node:14 AS deps
-WORKDIR /src
-COPY package.json yarn.lock ./
-RUN --mount=type=cache,target=/usr/local/share/.cache/yarn \
-  yarn install
-
-FROM scratch AS update-yarn
-COPY --from=deps /src/yarn.lock /
-
-FROM deps AS validate-yarn
-COPY .git .git
-RUN status=$(git status --porcelain -- yarn.lock); if [ -n "$status" ]; then echo $status; exit 1; fi
-
-FROM deps AS base
-COPY . .
-
-FROM base AS build
-RUN yarn build
-
-FROM deps AS test
-COPY --from=docker /usr/local/bin/docker /usr/bin/
-ARG TARGETOS
-ARG TARGETARCH
-ARG BUILDX_VERSION=v0.4.2
-ENV RUNNER_TEMP=/tmp/github_runner
-ENV RUNNER_TOOL_CACHE=/tmp/github_tool_cache
-RUN mkdir -p /usr/local/lib/docker/cli-plugins && \
-  curl -fsSL https://github.com/docker/buildx/releases/download/$BUILDX_VERSION/buildx-$BUILDX_VERSION.$TARGETOS-$TARGETARCH > /usr/local/lib/docker/cli-plugins/docker-buildx && \
-  chmod +x /usr/local/lib/docker/cli-plugins/docker-buildx && \
-  docker buildx version
-COPY . .
-RUN yarn run test
-
-FROM base AS run-format
-RUN yarn run format
-
-FROM scratch AS format
-COPY --from=run-format /src/src/*.ts /src/
-
-FROM base AS validate-format
-RUN yarn run format-check
-
-FROM scratch AS dist
-COPY --from=build /src/dist/ /dist/
-
-FROM build AS validate-build
-RUN status=$(git status --porcelain -- dist); if [ -n "$status" ]; then echo $status; exit 1; fi
-
-FROM base AS dev
-ENTRYPOINT ["bash"]
diff --git a/dist/index.js b/dist/index.js
index 8263f37..e50e40c 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -528,17 +528,17 @@ function run() {
             const inputs = yield context.getInputs();
             const dockerConfigHome = process.env.DOCKER_CONFIG || path.join(os.homedir(), '.docker');
             if (!(yield buildx.isAvailable()) || inputs.version) {
-                core.startGroup(`👉 Installing Buildx`);
+                core.startGroup(`Installing buildx`);
                 yield buildx.install(inputs.version || 'latest', dockerConfigHome);
                 core.endGroup();
             }
             const buildxVersion = yield buildx.getVersion();
-            core.info(`📣 Buildx version: ${buildxVersion}`);
+            core.info(`Using buildx ${buildxVersion}`);
             const builderName = inputs.driver == 'docker' ? 'default' : `builder-${__webpack_require__(840).v4()}`;
             core.setOutput('name', builderName);
             stateHelper.setBuilderName(builderName);
             if (inputs.driver !== 'docker') {
-                core.startGroup(`🔨 Creating a new builder instance`);
+                core.startGroup(`Creating a new builder instance`);
                 let createArgs = ['buildx', 'create', '--name', builderName, '--driver', inputs.driver];
                 if (semver.satisfies(buildxVersion, '>=0.3.0')) {
                     yield context.asyncForEach(inputs.driverOpts, (driverOpt) => __awaiter(this, void 0, void 0, function* () {
@@ -556,7 +556,7 @@ function run() {
                 }
                 yield exec.exec('docker', createArgs);
                 core.endGroup();
-                core.startGroup(`🏃 Booting builder`);
+                core.startGroup(`Booting builder`);
                 let bootstrapArgs = ['buildx', 'inspect', '--bootstrap'];
                 if (semver.satisfies(buildxVersion, '>=0.4.0')) {
                     bootstrapArgs.push('--builder', builderName);
@@ -565,11 +565,11 @@ function run() {
                 core.endGroup();
             }
             if (inputs.install) {
-                core.startGroup(`🤝 Setting buildx as default builder`);
+                core.startGroup(`Setting buildx as default builder`);
                 yield exec.exec('docker', ['buildx', 'install']);
                 core.endGroup();
             }
-            core.startGroup(`🛒 Extracting available platforms`);
+            core.startGroup(`Extracting available platforms`);
             const platforms = yield buildx.platforms();
             core.info(`${platforms}`);
             core.setOutput('platforms', platforms);
@@ -2185,7 +2185,7 @@ function install(inputVersion, dockerConfigHome) {
         if (!release) {
             throw new Error(`Cannot find buildx ${inputVersion} release`);
         }
-        core.debug(`Release found: ${release.tag_name}`);
+        core.debug(`Release ${release.tag_name} found`);
         const version = release.tag_name.replace(/^v+|v+$/g, '');
         let toolPath;
         toolPath = tc.find('buildx', version);
@@ -2205,7 +2205,7 @@ function install(inputVersion, dockerConfigHome) {
         const pluginPath = path.join(pluginsDir, filename);
         core.debug(`Plugin path is ${pluginPath}`);
         fs.copyFileSync(path.join(toolPath, filename), pluginPath);
-        core.info('🔨 Fixing perms...');
+        core.info('Fixing perms');
         fs.chmodSync(pluginPath, '0755');
         return pluginPath;
     });
@@ -2217,7 +2217,7 @@ function download(version) {
         const downloadUrl = util.format('https://github.com/docker/buildx/releases/download/v%s/%s', version, yield filename(version));
         let downloadPath;
         try {
-            core.info(`⬇️ Downloading ${downloadUrl}...`);
+            core.info(`Downloading ${downloadUrl}`);
             downloadPath = yield tc.downloadTool(downloadUrl);
             core.debug(`Downloaded to ${downloadPath}`);
         }
diff --git a/docker-bake.hcl b/docker-bake.hcl
index f7f1745..7054cf7 100644
--- a/docker-bake.hcl
+++ b/docker-bake.hcl
@@ -1,42 +1,67 @@
+variable "NODE_VERSION" {
+  default = "12"
+}
+
+target "node-version" {
+  args = {
+    NODE_VERSION = NODE_VERSION
+  }
+}
+
 group "default" {
   targets = ["build"]
 }
 
 group "pre-checkin" {
-  targets = ["update-yarn", "format", "build"]
+  targets = ["vendor-update", "format", "build"]
 }
 
 group "validate" {
-	targets = ["validate-format", "validate-build", "validate-yarn"]
-}
-
-target "update-yarn" {
-  target = "update-yarn"
-  output = ["."]
+  targets = ["format-validate", "build-validate", "vendor-validate"]
 }
 
 target "build" {
-  target = "dist"
+  inherits = ["node-version"]
+  dockerfile = "./hack/build.Dockerfile"
+  target = "build-update"
   output = ["."]
 }
 
-target "test" {
-  target = "test"
+target "build-validate" {
+  inherits = ["node-version"]
+  dockerfile = "./hack/build.Dockerfile"
+  target = "build-validate"
 }
 
 target "format" {
-  target = "format"
+  inherits = ["node-version"]
+  dockerfile = "./hack/build.Dockerfile"
+  target = "format-update"
   output = ["."]
 }
 
-target "validate-format" {
-  target = "validate-format"
+target "format-validate" {
+  inherits = ["node-version"]
+  dockerfile = "./hack/build.Dockerfile"
+  target = "format-validate"
 }
 
-target "validate-build" {
-  target = "validate-build"
+target "vendor-update" {
+  inherits = ["node-version"]
+  dockerfile = "./hack/vendor.Dockerfile"
+  target = "update"
+  output = ["."]
 }
 
-target "validate-yarn" {
-	target = "validate-yarn"
-}
\ No newline at end of file
+target "vendor-validate" {
+  inherits = ["node-version"]
+  dockerfile = "./hack/vendor.Dockerfile"
+  target = "validate"
+}
+
+target "test" {
+  inherits = ["node-version"]
+  dockerfile = "./hack/test.Dockerfile"
+  target = "test-coverage"
+  output = ["./coverage"]
+}
diff --git a/hack/build.Dockerfile b/hack/build.Dockerfile
new file mode 100644
index 0000000..a0796d7
--- /dev/null
+++ b/hack/build.Dockerfile
@@ -0,0 +1,42 @@
+# syntax=docker/dockerfile:1.2
+ARG NODE_VERSION
+
+FROM node:${NODE_VERSION}-alpine AS base
+RUN apk add --no-cache cpio findutils git
+WORKDIR /src
+
+FROM base AS deps
+RUN --mount=type=bind,target=.,rw \
+  --mount=type=cache,target=/src/node_modules \
+  yarn install
+
+FROM deps AS build
+RUN --mount=type=bind,target=.,rw \
+  --mount=type=cache,target=/src/node_modules \
+  yarn run build && mkdir /out && cp -Rf dist /out/
+
+FROM scratch AS build-update
+COPY --from=build /out /
+
+FROM build AS build-validate
+RUN --mount=type=bind,target=.,rw \
+  git add -A && cp -rf /out/* .; \
+  if [ -n "$(git status --porcelain -- dist)" ]; then \
+    echo >&2 'ERROR: Build result differs. Please build first with "docker buildx bake build"'; \
+    git status --porcelain -- dist; \
+    exit 1; \
+  fi
+
+FROM deps AS format
+RUN --mount=type=bind,target=.,rw \
+  --mount=type=cache,target=/src/node_modules \
+  yarn run format \
+  && mkdir /out && find . -name '*.ts' -not -path './node_modules/*' | cpio -pdm /out
+
+FROM scratch AS format-update
+COPY --from=format /out /
+
+FROM deps AS format-validate
+RUN --mount=type=bind,target=.,rw \
+  --mount=type=cache,target=/src/node_modules \
+  yarn run format-check \
diff --git a/hack/shell b/hack/shell
deleted file mode 100755
index 97b23ea..0000000
--- a/hack/shell
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env bash
-
-iidfile=$(mktemp -t docker-iidfile.XXXXXXXXXX)
-DOCKER_BUILDKIT=1 docker build --iidfile $iidfile --progress=plain .
-docker run -it --rm $(cat $iidfile)
-docker rmi $(cat $iidfile)
diff --git a/hack/test.Dockerfile b/hack/test.Dockerfile
new file mode 100644
index 0000000..6a6c5d6
--- /dev/null
+++ b/hack/test.Dockerfile
@@ -0,0 +1,23 @@
+# syntax=docker/dockerfile:1.2
+ARG NODE_VERSION
+
+FROM node:${NODE_VERSION}-alpine AS base
+RUN apk add --no-cache git
+WORKDIR /src
+
+FROM base AS deps
+RUN --mount=type=bind,target=.,rw \
+  --mount=type=cache,target=/src/node_modules \
+  yarn install
+
+FROM deps AS test
+ENV RUNNER_TEMP=/tmp/github_runner
+ENV RUNNER_TOOL_CACHE=/tmp/github_tool_cache
+RUN --mount=type=bind,target=.,rw \
+  --mount=type=cache,target=/src/node_modules \
+  --mount=type=bind,from=crazymax/docker,source=/usr/libexec/docker/cli-plugins/docker-buildx,target=/usr/libexec/docker/cli-plugins/docker-buildx \
+  --mount=type=bind,from=crazymax/docker,source=/usr/local/bin/docker,target=/usr/bin/docker \
+  yarn run test --coverageDirectory=/tmp/coverage
+
+FROM scratch AS test-coverage
+COPY --from=test /tmp/coverage /
diff --git a/hack/vendor.Dockerfile b/hack/vendor.Dockerfile
new file mode 100644
index 0000000..dd7906b
--- /dev/null
+++ b/hack/vendor.Dockerfile
@@ -0,0 +1,23 @@
+# syntax=docker/dockerfile:1.2
+ARG NODE_VERSION
+
+FROM node:${NODE_VERSION}-alpine AS base
+RUN apk add --no-cache git
+WORKDIR /src
+
+FROM base AS vendored
+RUN --mount=type=bind,target=.,rw \
+  --mount=type=cache,target=/src/node_modules \
+  yarn install && mkdir /out && cp yarn.lock /out
+
+FROM scratch AS update
+COPY --from=vendored /out /
+
+FROM vendored AS validate
+RUN --mount=type=bind,target=.,rw \
+  git add -A && cp -rf /out/* .; \
+  if [ -n "$(git status --porcelain -- yarn.lock)" ]; then \
+    echo >&2 'ERROR: Vendor result differs. Please vendor your package with "docker buildx bake vendor-update"'; \
+    git status --porcelain -- yarn.lock; \
+    exit 1; \
+  fi
diff --git a/src/buildx.ts b/src/buildx.ts
index 912cbf0..e1ee9f3 100644
--- a/src/buildx.ts
+++ b/src/buildx.ts
@@ -52,7 +52,7 @@ export async function install(inputVersion: string, dockerConfigHome: string): P
   if (!release) {
     throw new Error(`Cannot find buildx ${inputVersion} release`);
   }
-  core.debug(`Release found: ${release.tag_name}`);
+  core.debug(`Release ${release.tag_name} found`);
   const version = release.tag_name.replace(/^v+|v+$/g, '');
 
   let toolPath: string;
@@ -76,7 +76,7 @@ export async function install(inputVersion: string, dockerConfigHome: string): P
   core.debug(`Plugin path is ${pluginPath}`);
   fs.copyFileSync(path.join(toolPath, filename), pluginPath);
 
-  core.info('🔨 Fixing perms...');
+  core.info('Fixing perms');
   fs.chmodSync(pluginPath, '0755');
 
   return pluginPath;
@@ -92,7 +92,7 @@ async function download(version: string): Promise<string> {
   let downloadPath: string;
 
   try {
-    core.info(`⬇️ Downloading ${downloadUrl}...`);
+    core.info(`Downloading ${downloadUrl}`);
     downloadPath = await tc.downloadTool(downloadUrl);
     core.debug(`Downloaded to ${downloadPath}`);
   } catch (error) {
diff --git a/src/main.ts b/src/main.ts
index d5eb526..560524c 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -19,20 +19,20 @@ async function run(): Promise<void> {
     const dockerConfigHome: string = process.env.DOCKER_CONFIG || path.join(os.homedir(), '.docker');
 
     if (!(await buildx.isAvailable()) || inputs.version) {
-      core.startGroup(`👉 Installing Buildx`);
+      core.startGroup(`Installing buildx`);
       await buildx.install(inputs.version || 'latest', dockerConfigHome);
       core.endGroup();
     }
 
     const buildxVersion = await buildx.getVersion();
-    core.info(`📣 Buildx version: ${buildxVersion}`);
+    core.info(`Using buildx ${buildxVersion}`);
 
     const builderName: string = inputs.driver == 'docker' ? 'default' : `builder-${require('uuid').v4()}`;
     core.setOutput('name', builderName);
     stateHelper.setBuilderName(builderName);
 
     if (inputs.driver !== 'docker') {
-      core.startGroup(`🔨 Creating a new builder instance`);
+      core.startGroup(`Creating a new builder instance`);
       let createArgs: Array<string> = ['buildx', 'create', '--name', builderName, '--driver', inputs.driver];
       if (semver.satisfies(buildxVersion, '>=0.3.0')) {
         await context.asyncForEach(inputs.driverOpts, async driverOpt => {
@@ -51,7 +51,7 @@ async function run(): Promise<void> {
       await exec.exec('docker', createArgs);
       core.endGroup();
 
-      core.startGroup(`🏃 Booting builder`);
+      core.startGroup(`Booting builder`);
       let bootstrapArgs: Array<string> = ['buildx', 'inspect', '--bootstrap'];
       if (semver.satisfies(buildxVersion, '>=0.4.0')) {
         bootstrapArgs.push('--builder', builderName);
@@ -61,12 +61,12 @@ async function run(): Promise<void> {
     }
 
     if (inputs.install) {
-      core.startGroup(`🤝 Setting buildx as default builder`);
+      core.startGroup(`Setting buildx as default builder`);
       await exec.exec('docker', ['buildx', 'install']);
       core.endGroup();
     }
 
-    core.startGroup(`🛒 Extracting available platforms`);
+    core.startGroup(`Extracting available platforms`);
     const platforms = await buildx.platforms();
     core.info(`${platforms}`);
     core.setOutput('platforms', platforms);