diff --git a/.cirrus.yml b/.cirrus.yml
index 33e6595..495e5e6 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -1,10 +1,10 @@
 env:
   CIRRUS_CLONE_DEPTH: 1
-  GO_VERSION: go1.22.2
+  GO_VERSION: go1.24.0
 
 freebsd_13_task:
   freebsd_instance:
-    image_family: freebsd-13-2
+    image_family: freebsd-13-5
   install_script: |
     pkg install -y go
     GOBIN=$PWD/bin go install golang.org/dl/${GO_VERSION}@latest
@@ -14,7 +14,7 @@ freebsd_13_task:
 
 freebsd_14_task:
   freebsd_instance:
-    image_family: freebsd-14-0
+    image_family: freebsd-14-2
   install_script: |
     pkg install -y go
     GOBIN=$PWD/bin go install golang.org/dl/${GO_VERSION}@latest
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 2c6565d..1a47c8b 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -13,13 +13,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+    - name: Check out code
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
     - name: Install Go
-      uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491
+      uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.0.2
       with:
-        go-version: '1.22'
-
-    - name: Check out code
-      uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
+        go-version: '1.24'
 
     - name: Install staticcheck
       run: go install honnef.co/go/tools/cmd/staticcheck@latest
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e221643..59afd0d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,30 +12,39 @@ jobs:
   build-and-test:
     strategy:
       matrix:
-        # Oldest supported version is 1.18, plus the latest two releases.
-        go-version: ['1.18', '1.21', '1.22']
-        os: [ubuntu-20.04, ubuntu-22.04, macos-11, macos-12, macos-13, macos-14, windows-2019, windows-2022]
+        # Latest two supported releases.
+        go-version: ['1.23', '1.24']
+        os: [ubuntu-22.04, ubuntu-24.04, ubuntu-24.04-arm, macos-13, macos-14, macos-15, windows-2019, windows-2022]
     runs-on: ${{ matrix.os }}
 
     steps:
+    - name: Check out code
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
     - name: Install Go
-      uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491
+      uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.0.2
       with:
         go-version: ${{ matrix.go-version }}
 
-    - name: Check out code
-      uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
-
     - name: Check formatting
-      if: ${{ matrix.go-version == '1.22' && matrix.os == 'ubuntu-22.04' }}
+      if: ${{ matrix.go-version == '1.24' && matrix.os == 'ubuntu-24.04' }}
       run: diff -u <(echo -n) <(gofmt -d .)
 
     - name: Check Go modules
-      if: ${{ matrix.go-version == '1.22' && matrix.os == 'ubuntu-22.04' }}
+      if: ${{ matrix.go-version == '1.24' && matrix.os == 'ubuntu-24.04' }}
       run: |
         go mod tidy
         git diff --exit-code
 
+    - name: Generate
+      if: ${{ matrix.go-version == '1.24' }}
+      run: |
+        go generate
+        git diff --exit-code
+
+    - name: Test (native)
+      run: go test -v ./...
+
     - name: Build (cross-compile)
       if: matrix.os == 'ubuntu-22.04'
       run: |
@@ -47,6 +56,3 @@ jobs:
         GOOS=openbsd go build ./...
         GOOS=solaris go build ./...
         GOOS=windows go build ./...
-
-    - name: Test (native)
-      run: go test -v ./...
diff --git a/go.mod b/go.mod
index 68fb9b6..fecc6ab 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,8 @@
 module github.com/tklauser/go-sysconf
 
-go 1.18
+go 1.23.0
 
 require (
-	github.com/tklauser/numcpus v0.8.0
-	golang.org/x/sys v0.19.0
+	github.com/tklauser/numcpus v0.10.0
+	golang.org/x/sys v0.33.0
 )
diff --git a/go.sum b/go.sum
index 2973ec0..6b77038 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
-github.com/tklauser/numcpus v0.8.0 h1:Mx4Wwe/FjZLeQsK/6kt2EOepwwSl7SmJrK5bV/dXYgY=
-github.com/tklauser/numcpus v0.8.0/go.mod h1:ZJZlAY+dmR4eut8epnzf0u/VwodKmryxR8txiloSqBE=
-golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
-golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+github.com/tklauser/numcpus v0.10.0 h1:18njr6LDBk1zuna922MgdjQuJFjrdppsZG60sHGfjso=
+github.com/tklauser/numcpus v0.10.0/go.mod h1:BiTKazU708GQTYF4mB+cmlpT2Is1gLk7XVuEeem8LsQ=
+golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
+golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
diff --git a/mksysconf.go b/mksysconf.go
index eae4fd8..af5b8e4 100644
--- a/mksysconf.go
+++ b/mksysconf.go
@@ -51,19 +51,27 @@ func gensysconf(in, out, goos, goarch string) error {
 }
 
 func main() {
-	goos, goarch := runtime.GOOS, runtime.GOARCH
-	if goos == "illumos" {
-		goos = "solaris"
+	goos := os.Getenv("GOOS_TARGET")
+	if goos == "" {
+		goos = runtime.GOOS
+		if goos == "illumos" {
+			goos = "solaris"
+		}
+	}
+	goarch := os.Getenv("GOARCH_TARGET")
+	if goarch == "" {
+		goarch = runtime.GOARCH
 	}
+
 	defs := fmt.Sprintf("sysconf_defs_%s.go", goos)
 	if err := gensysconf(defs, "z"+defs, goos, ""); err != nil {
 		fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)
 	}
 
-	vals := fmt.Sprintf("sysconf_values_%s.go", runtime.GOOS)
+	vals := fmt.Sprintf("sysconf_values_%s.go", goos)
 	// sysconf variable values are GOARCH-specific, thus write per GOARCH
-	zvals := fmt.Sprintf("zsysconf_values_%s_%s.go", runtime.GOOS, runtime.GOARCH)
+	zvals := fmt.Sprintf("zsysconf_values_%s_%s.go", goos, goarch)
 	if err := gensysconf(vals, zvals, goos, goarch); err != nil {
 		fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)