diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 489afe4..bb9c700 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -6,25 +6,42 @@ on:
       - main
     tags-ignore:
       - v*
-
   pull_request:
     branches:
       - main
+  schedule:
+    - cron: 0 4/12 * * *
+  workflow_dispatch:
+    inputs:
+      nightly:
+        description: Use latest nightly
+        required: true
+        type: boolean
 
 jobs:
   ci:
     runs-on: ubuntu-latest
     steps:
       - name: Check out
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
-      # Nightly needed for `cargo +nightly fmt` below
       - name: Install Rust toolchain
+        env:
+          nightly: ${{ (github.event.inputs.nightly == 'true' || github.event_name == 'schedule') && 'true' || '' }}
         run: |
-          rustup update
-          rustup toolchain install nightly --profile minimal
-          rustup component add rustfmt --toolchain nightly
-          # rustup component add clippy --toolchain nightly
+          if [ -z $nightly ]; then
+            toolchain=$(grep channel rust-toolchain.toml | sed -r 's/channel = "(.*)"/\1/')
+            echo "installing toolchain $toolchain from rust-toolchain.toml"
+          else
+            toolchain='nightly'
+            echo "installing toolchain nightly"
+            echo "also setting RUSTUP_TOOLCHAIN to nightly"
+            echo "RUSTUP_TOOLCHAIN=nightly" >> "$GITHUB_ENV"
+          fi
+          rm /home/runner/.cargo/bin/rustfmt
+          rustup toolchain install $toolchain --profile minimal
+          rustup component add --toolchain $toolchain rustfmt
+          rustup component add --toolchain $toolchain clippy
 
       - name: Install just
         uses: taiki-e/install-action@v2
@@ -33,12 +50,17 @@ jobs:
 
       - name: Install protoc
         uses: arduino/setup-protoc@v2
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set up Rust cache
         uses: Swatinem/rust-cache@v2
 
+      - name: Build
+        run: just check
+
       - name: Check code format
-        run: just fmt_check
+        run: just fmt-check
 
       - name: Run linter
         run: just lint
diff --git a/justfile b/justfile
index 16b5c05..01f8ddd 100644
--- a/justfile
+++ b/justfile
@@ -1,21 +1,30 @@
 set shell := ["bash", "-uc"]
 
 check:
+	@echo "RUSTUP_TOOLCHAIN is ${RUSTUP_TOOLCHAIN:-not set}"
 	cargo check --tests
 
 fmt:
-	cargo +nightly fmt
+	@echo "RUSTUP_TOOLCHAIN is ${RUSTUP_TOOLCHAIN:-not set}"
+	cargo fmt
 
-fmt_check:
-	cargo +nightly fmt --check
+fmt-check:
+	@echo "RUSTUP_TOOLCHAIN is ${RUSTUP_TOOLCHAIN:-not set}"
+	cargo fmt --check
 
 lint:
+	@echo "RUSTUP_TOOLCHAIN is ${RUSTUP_TOOLCHAIN:-not set}"
 	cargo clippy --no-deps -- -D warnings
 
 test:
+	@echo "RUSTUP_TOOLCHAIN is ${RUSTUP_TOOLCHAIN:-not set}"
 	cargo test
 
-all: fmt check lint test
+fix:
+	@echo "RUSTUP_TOOLCHAIN is ${RUSTUP_TOOLCHAIN:-not set}"
+	cargo fix --allow-dirty --allow-staged
+
+all: check fmt lint test
 
 run-gateway:
 	RUST_LOG=hello_tracing_gateway=debug,info \
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 292fe49..6edd601 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "stable"
+channel = "nightly-2023-11-11"