diff --git a/.github/workflows/cross-darwin.yml b/.github/workflows/cross-darwin.yml
index d90f5bf9a..5dfab485e 100644
--- a/.github/workflows/cross-darwin.yml
+++ b/.github/workflows/cross-darwin.yml
@@ -19,16 +19,15 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
 
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version-file: go.mod
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
-
     - name: macOS build cmd
       env:
         GOOS: darwin
diff --git a/.github/workflows/cross-freebsd.yml b/.github/workflows/cross-freebsd.yml
index 17aa14924..684e31cf2 100644
--- a/.github/workflows/cross-freebsd.yml
+++ b/.github/workflows/cross-freebsd.yml
@@ -19,16 +19,15 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
 
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version-file: go.mod
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
-
     - name: FreeBSD build cmd
       env:
         GOOS: freebsd
diff --git a/.github/workflows/cross-openbsd.yml b/.github/workflows/cross-openbsd.yml
index 43f7dc314..cc4cd11b2 100644
--- a/.github/workflows/cross-openbsd.yml
+++ b/.github/workflows/cross-openbsd.yml
@@ -19,16 +19,15 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
 
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version-file: go.mod
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
-
     - name: OpenBSD build cmd
       env:
         GOOS: openbsd
diff --git a/.github/workflows/cross-wasm.yml b/.github/workflows/cross-wasm.yml
index 7caeb0add..60a397add 100644
--- a/.github/workflows/cross-wasm.yml
+++ b/.github/workflows/cross-wasm.yml
@@ -19,16 +19,15 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
 
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version-file: go.mod
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
-
     - name: Wasm client build
       env:
         GOOS: js
diff --git a/.github/workflows/cross-windows.yml b/.github/workflows/cross-windows.yml
index 90780cb19..470cc4a2f 100644
--- a/.github/workflows/cross-windows.yml
+++ b/.github/workflows/cross-windows.yml
@@ -19,16 +19,15 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
 
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version-file: go.mod
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
-
     - name: Windows build cmd
       env:
         GOOS: windows
diff --git a/.github/workflows/depaware.yml b/.github/workflows/depaware.yml
index 34ad1a4d4..fb5fb0fc9 100644
--- a/.github/workflows/depaware.yml
+++ b/.github/workflows/depaware.yml
@@ -17,13 +17,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+    - name: Check out code
+      uses: actions/checkout@v3
+
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
-
-    - name: Check out code
-      uses: actions/checkout@v3
+        go-version-file: go.mod
 
     - name: depaware
       run: go run github.com/tailscale/depaware --check
diff --git a/.github/workflows/go_generate.yml b/.github/workflows/go_generate.yml
index a175af93a..6f82af963 100644
--- a/.github/workflows/go_generate.yml
+++ b/.github/workflows/go_generate.yml
@@ -18,16 +18,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: 1.19
-
       - name: Check out code
         uses: actions/checkout@v3
         with:
           fetch-depth: 0
 
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version-file: go.mod
+
       - name: check 'go generate' is clean
         run: |
           if [[ "${{github.ref}}" == release-branch/* ]]
diff --git a/.github/workflows/license.yml b/.github/workflows/license.yml
index caf5f7e78..639b81c7a 100644
--- a/.github/workflows/license.yml
+++ b/.github/workflows/license.yml
@@ -17,13 +17,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+    - name: Check out code
+      uses: actions/checkout@v3
+
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
-
-    - name: Check out code
-      uses: actions/checkout@v3
+        go-version-file: go.mod
 
     - name: Run license checker
       run: ./scripts/check_license_headers.sh .
diff --git a/.github/workflows/linux-race.yml b/.github/workflows/linux-race.yml
index f01e4d1a4..cd92d717c 100644
--- a/.github/workflows/linux-race.yml
+++ b/.github/workflows/linux-race.yml
@@ -19,16 +19,15 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
 
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version-file: go.mod
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
-
     - name: Basic build
       run: go build ./cmd/...
 
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index a62d022af..228b701b5 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -19,16 +19,15 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
 
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version-file: go.mod
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
-
     - name: Basic build
       run: go build ./cmd/...
 
diff --git a/.github/workflows/linux32.yml b/.github/workflows/linux32.yml
index 23ad30485..c0a64a702 100644
--- a/.github/workflows/linux32.yml
+++ b/.github/workflows/linux32.yml
@@ -19,16 +19,15 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
 
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
+        go-version-file: go.mod
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v3
-
     - name: Basic build
       run: GOARCH=386 go build ./cmd/...
 
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index b056346b8..b50cf5a9a 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -16,12 +16,12 @@ jobs:
   gofmt:
     runs-on: ubuntu-latest
     steps:
+    - name: Check out code
+      uses: actions/checkout@v3
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19
-    - name: Check out code
-      uses: actions/checkout@v3
+        go-version-file: go.mod
     - name: Run gofmt (goimports)
       run: go run golang.org/x/tools/cmd/goimports -d --format-only .
     - uses: k0kubun/action-slack@v2.0.0
diff --git a/.github/workflows/vm.yml b/.github/workflows/vm.yml
index 04c3bc2ff..53989bc9e 100644
--- a/.github/workflows/vm.yml
+++ b/.github/workflows/vm.yml
@@ -19,13 +19,13 @@ jobs:
       - name: Set GOPATH
         run: echo "GOPATH=$HOME/go" >> $GITHUB_ENV
 
+      - name: Checkout Code
+        uses: actions/checkout@v3
+
       - name: Set up Go
         uses: actions/setup-go@v3
         with:
-          go-version: 1.19
-
-      - name: Checkout Code
-        uses: actions/checkout@v3
+          go-version-file: go.mod
 
       - name: Run VM tests
         run: go test ./tstest/integration/vms -v -no-s3 -run-vm-tests -run=TestRunUbuntu2004
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 2f753c023..7b5706635 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -19,14 +19,13 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
 
     steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
 
     - name: Install Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.19.x
-
-    - name: Checkout code
-      uses: actions/checkout@v3
+        go-version-file: go.mod
 
     - name: Restore Cache
       uses: actions/cache@v3