Merge remote-tracking branch 'origin/main' into test-runner

.envrc

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+source_env_if_exists ./.envrc.local

.envrc.local

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+use flake
+
+source_env ../.envrc

.github/workflows/nix.yaml

@@ -0,0 +1,20 @@
+name: test Nix support
+
+on: push
+
+jobs:
+  evaluate-nix-shell:
+    name: Evaluate the Nix shell
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v3
+
+      - name: Install Nix ❄
+        uses: DeterminateSystems/nix-installer-action@v4
+
+      - name: Run the Magic Nix Cache 🔌
+        uses: DeterminateSystems/magic-nix-cache-action@v2
+
+      - name: Evaluate the Nix shell
+        run: nix develop -c "true"

.gitignore

@@ -1 +1,5 @@
+# Rust
 /target
+
+# direnv
+/.direnv