diff --git a/.github/cue/rust.cue b/.github/cue/rust.cue
index da50a71..800b72a 100644
--- a/.github/cue/rust.cue
+++ b/.github/cue/rust.cue
@@ -76,19 +76,7 @@ rust: _#useMergeQueue & {
 				_#checkoutCode,
 				_#installRust,
 				_#cacheRust & {with: "shared-key": "stable-${{ matrix.platform }}"},
-				_#installTool & {with: tool:       "cargo-nextest"},
-				{
-					name: "Compile tests"
-					run:  "cargo test --locked --no-run"
-				},
-				{
-					name: "Run tests"
-					run:  "cargo nextest run --locked"
-				},
-				{
-					name: "Run doctests"
-					run:  "cargo test --locked --doc"
-				},
+				for step in _testRust {step},
 			]
 		}
 
diff --git a/.github/cue/scheduled.cue b/.github/cue/scheduled.cue
new file mode 100644
index 0000000..0f42985
--- /dev/null
+++ b/.github/cue/scheduled.cue
@@ -0,0 +1,44 @@
+package workflows
+
+scheduled: {
+	name: "scheduled"
+
+	on: {
+		// Run every Monday at 7:45am UTC.
+		schedule: [{cron: "45 7 * * 1"}]
+
+		// Allow manually running this workflow.
+		workflow_dispatch: null
+	}
+
+	concurrency: {
+		group:                "${{ github.workflow }}-${{ github.ref }}"
+		"cancel-in-progress": true
+	}
+
+	env: {
+		CARGO_INCREMENTAL: 0
+		CARGO_TERM_COLOR:  "always"
+		RUST_BACKTRACE:    1
+		RUSTFLAGS:         "-D warnings"
+	}
+
+	jobs: direct_minimal_versions: {
+		name:      "direct-minimal-versions / stable"
+		"runs-on": defaultRunner
+		steps: [
+			_#checkoutCode & {with: ref: defaultBranch},
+			_#installRust,
+			_#installRust & {with: toolchain: "nightly"},
+			{
+				name: "Default to stable Rust"
+				run:  "rustup default stable"
+			},
+			{
+				name: "Resolve minimal dependency versions instead of maximum"
+				run:  "cargo +nightly update -Zdirect-minimal-versions"
+			},
+			for step in _testRust {step},
+		]
+	}
+}
diff --git a/.github/cue/shared-steps.cue b/.github/cue/shared-steps.cue
index f5acc75..4ca070d 100644
--- a/.github/cue/shared-steps.cue
+++ b/.github/cue/shared-steps.cue
@@ -86,3 +86,19 @@ _#prettier: _#step & {
 	uses: "creyD/prettier_action@31355f8eef017f8aeba2e0bc09d8502b13dbbad1"
 	with: prettier_version: "2.8.8"
 }
+
+_testRust: [
+	_#installTool & {with: tool: "cargo-nextest"},
+	_#step & {
+		name: "Compile tests"
+		run:  "cargo test --locked --no-run"
+	},
+	_#step & {
+		name: "Run tests"
+		run:  "cargo nextest run --locked --all-targets --all-features"
+	},
+	_#step & {
+		name: "Run doctests"
+		run:  "cargo test --locked --doc"
+	},
+]
diff --git a/.github/cue/workflows.cue b/.github/cue/workflows.cue
index aef98f3..533d43b 100644
--- a/.github/cue/workflows.cue
+++ b/.github/cue/workflows.cue
@@ -14,6 +14,7 @@ workflows: [
 	{workflow: githubPages},
 	{workflow: preloadCaches},
 	{workflow: rust},
+	{workflow: scheduled},
 	{workflow: wordsmith},
 ]
 
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index cdfabcf..75fb55d 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -144,7 +144,7 @@ jobs:
       - name: Compile tests
         run: cargo test --locked --no-run
       - name: Run tests
-        run: cargo nextest run --locked
+        run: cargo nextest run --locked --all-targets --all-features
       - name: Run doctests
         run: cargo test --locked --doc
   check_msrv:
diff --git a/.github/workflows/scheduled.yml b/.github/workflows/scheduled.yml
new file mode 100644
index 0000000..3d98b90
--- /dev/null
+++ b/.github/workflows/scheduled.yml
@@ -0,0 +1,46 @@
+# This file is generated by .github/cue/ci_tool.cue; DO NOT EDIT!
+
+name: scheduled
+"on":
+  schedule:
+    - cron: 45 7 * * 1
+  workflow_dispatch: null
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+env:
+  CARGO_INCREMENTAL: 0
+  CARGO_TERM_COLOR: always
+  RUST_BACKTRACE: 1
+  RUSTFLAGS: -D warnings
+jobs:
+  direct_minimal_versions:
+    name: direct-minimal-versions / stable
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
+        with:
+          ref: main
+      - name: Install stable Rust toolchain
+        uses: dtolnay/rust-toolchain@b44cb146d03e8d870c57ab64b80f04586349ca5d
+        with:
+          toolchain: stable
+      - name: Install nightly Rust toolchain
+        uses: dtolnay/rust-toolchain@b44cb146d03e8d870c57ab64b80f04586349ca5d
+        with:
+          toolchain: nightly
+      - name: Default to stable Rust
+        run: rustup default stable
+      - name: Resolve minimal dependency versions instead of maximum
+        run: cargo +nightly update -Zdirect-minimal-versions
+      - name: Install cargo-nextest
+        uses: taiki-e/install-action@a775aaf2e8ed709f76ee019cb77e39fc50613631
+        with:
+          tool: cargo-nextest
+      - name: Compile tests
+        run: cargo test --locked --no-run
+      - name: Run tests
+        run: cargo nextest run --locked --all-targets --all-features
+      - name: Run doctests
+        run: cargo test --locked --doc