Cut down suite for digging

.github/workflows/ci.yml

@@ -12,8 +12,6 @@ jobs:
     needs:
       - check-dist-up-to-date
       - install-nix-linux
-      - install-nix-macos
-      - install-with-non-default-source-inputs
     # NOTE(cole-h): GitHub treats "skipped" as "OK" for the purposes of required checks on branch
     # protection, so we take advantage of this fact and fail if any of the dependent actions failed,
     # or "skip" (which is a success for GHA's purposes) if none of them did.
@@ -49,9 +47,8 @@ jobs:
     strategy:
       matrix:
         runner:
-          - ubuntu-latest
           - nscloud-ubuntu-22.04-amd64-4x16
-          - namespace-profile-default-arm64
+          #- namespace-profile-default-arm64
         determinate:
           - true
           - false
@@ -133,116 +130,3 @@ jobs:
           cat -n /etc/nix/nix.conf
           grep -E "^trusted-users = .*$USER" /etc/nix/nix.conf
           grep -E "^use-sqlite-wal = true" /etc/nix/nix.conf
-
-  install-nix-macos:
-    name: Run test suite for macOS systems
-    strategy:
-      matrix:
-        runner:
-          #- macos-12-large
-          - macos-13-large
-          - macos-14-large
-          - macos-14-xlarge # arm64
-        determinate:
-          - true
-          - false
-    runs-on: ${{ matrix.runner }}
-    permissions:
-      contents: read
-      id-token: write
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install Nix
-        uses: ./
-        with:
-          logger: pretty
-          log-directives: nix_installer=trace
-          backtrace: full
-          _internal-strict-mode: true
-          source-tag: v0.26.0
-          determinate: ${{ matrix.determinate }}
-      - name: echo $PATH
-        run: echo $PATH
-      - name: Test `nix` with `$GITHUB_PATH`
-        if: success() || failure()
-        run: |
-          nix run nixpkgs#hello
-          nix profile install nixpkgs#hello
-          hello
-          nix store gc
-          nix run nixpkgs#hello
-      - name: Test bash
-        run: nix-instantiate -E 'builtins.currentTime' --eval
-        if: success() || failure()
-        shell: bash --login {0}
-      - name: Test sh
-        run: nix-instantiate -E 'builtins.currentTime' --eval
-        if: success() || failure()
-        shell: sh -l {0}
-      - name: Test zsh
-        run: nix-instantiate -E 'builtins.currentTime' --eval
-        if: success() || failure()
-        shell: zsh --login --interactive {0}
-      - name: Install Nix again (noop)
-        uses: ./
-        with:
-          logger: pretty
-          log-directives: nix_installer=trace
-          backtrace: full
-          _internal-strict-mode: true
-      - name: Test `nix` with `$GITHUB_PATH`
-        if: success() || failure()
-        run: |
-          nix run nixpkgs#hello
-          nix profile install nixpkgs#hello
-          hello
-          nix store gc
-          nix run nixpkgs#hello
-      - name: Reinstall Nix
-        uses: ./
-        with:
-          logger: pretty
-          log-directives: nix_installer=trace
-          backtrace: full
-          reinstall: true
-          extra-conf: |
-            use-sqlite-wal = true
-          _internal-strict-mode: true
-      - name: Test `nix` with `$GITHUB_PATH`
-        if: success() || failure()
-        run: |
-          nix run nixpkgs#hello
-          nix profile install nixpkgs#hello
-          hello
-          nix store gc
-          nix run nixpkgs#hello
-      - name: Verify the generated nix.conf
-        run: |
-          cat /etc/nix/nix.conf
-          grep -E "^trusted-users = .*$USER" /etc/nix/nix.conf
-          grep -E "^use-sqlite-wal = true" /etc/nix/nix.conf
-
-  install-with-non-default-source-inputs:
-    name: Install Nix using non-default source-${{ matrix.inputs.key }}
-    runs-on: ubuntu-22.04
-    strategy:
-      matrix:
-        inputs:
-          # https://github.com/DeterminateSystems/nix-installer/blob/v0.18.0
-          - key: url
-            value: https://github.com/DeterminateSystems/nix-installer/releases/download/v0.18.0/nix-installer-x86_64-linux
-            nix-version: "2.21.2"
-          # https://github.com/DeterminateSystems/nix-installer/tree/7011c077ec491da410fbc39f68676b0908b9ce7e
-          - key: revision
-            value: 7011c077ec491da410fbc39f68676b0908b9ce7e
-            nix-version: "2.19.2"
-
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install with alternative source-${{ matrix.inputs.key }}
-        uses: ./
-        with:
-          source-${{ matrix.inputs.key }}: ${{ matrix.inputs.value }}
-          _internal-strict-mode: true
-      - name: Ensure that the expected Nix version ${{ matrix.inputs.nix-version }} is installed via alternative source-${{ matrix.inputs.key }}
-        run: .github/verify-version.sh ${{ matrix.inputs.nix-version }}