feat: add PoC

.github/CODEOWNERS

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+* @rvolosatovs

.github/actions/build-nix/action.yml

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+name: build via Nix
+
+inputs:
+  package:
+    description: package specification to build
+    required: true
+
+runs:
+  using: composite
+  steps:
+  - run: nix build -L '.#${{ inputs.package }}'
+    shell: bash
+  - run: nix run -L --inputs-from . 'nixpkgs#coreutils' -- --coreutils-prog=cp -RLv ./result '${{ inputs.package }}'
+    shell: bash
+  - uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4.4.0
+    with:
+      name: ${{ inputs.package }}
+      path: ${{ inputs.package }}

.github/actions/install-nix/action.yml

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+name: install Nix
+
+inputs:
+  cachixAuthToken:
+    description: auth token for https://app.cachix.org/organization/wasmcloud/cache/west
+
+runs:
+  using: composite
+  steps:
+  - uses: DeterminateSystems/nix-installer-action@v14
+    with:
+      extra-conf: |
+        accept-flake-config = true
+
+  - uses: DeterminateSystems/magic-nix-cache-action@v8
+
+  - uses: cachix/cachix-action@v15
+    continue-on-error: true
+    with:
+      name: west
+      authToken: '${{ inputs.cachixAuthToken }}'

.github/dependabot.yml

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+version: 2
+updates:
+- package-ecosystem: "cargo"
+  directory: "/"
+  schedule:
+    interval: "daily"
+
+- package-ecosystem: "gomod"
+  directory: "/go"
+  schedule:
+    interval: "daily"
+
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+    interval: "daily"
+- package-ecosystem: "github-actions"
+  directory: "/.github/actions/build-nix"
+  schedule:
+    interval: "daily"
+- package-ecosystem: "github-actions"
+  directory: "/.github/actions/install-nix"
+  schedule:
+    interval: "daily"

.github/workflows/nix.yml

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+name: nix
+
+on:
+  merge_group:
+  pull_request:
+  push:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+    - uses: ./.github/actions/install-nix
+      with:
+        cachixAuthToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+    - run: nix fmt
+
+  shell:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+    - uses: ./.github/actions/install-nix
+      with:
+        cachixAuthToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+    - run: |
+        nix profile install
+        wit-bindgen-wrpc --version
+        wrpc-wasmtime-nats --version
+
+  develop:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+    - uses: ./.github/actions/install-nix
+      with:
+        cachixAuthToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+    - run: nix develop -L --ignore-environment -c cargo tree

.github/workflows/scorecard.yml

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+# This workflow uses actions that are not certified by GitHub. They are provided
+# by a third-party and are governed by separate terms of service, privacy
+# policy, and support documentation.
+
+name: Scorecard supply-chain security
+on:
+  # For Branch-Protection check. Only the default branch is supported. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
+  branch_protection_rule:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: '45 1 * * 1'
+  push:
+    branches: [ "main" ]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+      # Uncomment the permissions below if installing in a private repository.
+      # contents: read
+      # actions: read
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@62b2cac7ed8198b15735ed49ab1e5cf35480ba46 # v2.4.0
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          # (Optional) "write" PAT token. Uncomment the `repo_token` line below if:
+          # - you want to enable the Branch-Protection check on a *public* repository, or
+          # - you are installing Scorecard on a *private* repository
+          # To create the PAT, follow the steps in https://github.com/ossf/scorecard-action#authentication-with-pat.
+          # repo_token: ${{ secrets.SCORECARD_TOKEN }}
+
+          # Public repositories:
+          #   - Publish results to OpenSSF REST API for easy access by consumers
+          #   - Allows the repository to include the Scorecard badge.
+          #   - See https://github.com/ossf/scorecard-action#publishing-results.
+          # For private repositories:
+          #   - `publish_results` will always be set to `false`, regardless
+          #     of the value entered here.
+          publish_results: true
+
+      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
+      # format to the repository Actions tab.
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4.4.0
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard.
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@4dd16135b69a43b6c8efb853346f8437d92d3c93 # v3.26.6
+        with:
+          sarif_file: results.sarif

.github/workflows/update.yml

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+name: nix-flake-update
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+  workflow_dispatch:
+
+jobs:
+  nix-flake-update:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: rvolosatovs/nix-flake-update-action@60ed905545151a290d73ce1302c23f4fb7ff43f0 # v2.0.4
+        with:
+          app-id: ${{ secrets.BOT_APP_ID }}
+          private-key: ${{ secrets.BOT_APP_PRIVATE_KEY }}
+          assignees: rvolosatovs
+          reviewers: rvolosatovs
+          delete-branch: true
+          signoff: true
+          labels: dependencies