diff --git a/cmd/dkl-local-server/main.go b/cmd/dkl-local-server/main.go
index bf4692b..8ac814a 100644
--- a/cmd/dkl-local-server/main.go
+++ b/cmd/dkl-local-server/main.go
@@ -21,13 +21,15 @@ const (
 	etcDir = "/etc/direktil"
 )
 
+var Version = "dev"
+
 var (
 	address    = flag.String("address", ":7606", "HTTP listen address")
 	tlsAddress = flag.String("tls-address", "", "HTTPS listen address")
 	certFile   = flag.String("tls-cert", etcDir+"/server.crt", "Server TLS certificate")
 	keyFile    = flag.String("tls-key", etcDir+"/server.key", "Server TLS key")
 
-	autoUnlock = flag.String("auto-unlock", "", "Auto-unlock store (testing only!)")
+	autoUnlock = flag.String("auto-unlock", "", "Auto-unlock store (testing only!) env: DLS_AUTO_UNLOCK")
 
 	casStore cas.Store
 )
@@ -41,6 +43,9 @@ func main() {
 		log.Fatal("no listen address given")
 	}
 
+	log.Print("Direktil local-server version ", Version)
+	wPublicState.Change(func(s *PublicState) { s.ServerVersion = Version })
+
 	computeUIHash()
 
 	openSecretStore()
diff --git a/cmd/dkl-local-server/state.go b/cmd/dkl-local-server/state.go
index e71542a..9397a17 100644
--- a/cmd/dkl-local-server/state.go
+++ b/cmd/dkl-local-server/state.go
@@ -8,8 +8,9 @@ import (
 )
 
 type PublicState struct {
-	UIHash string
-	Store  struct {
+	ServerVersion string
+	UIHash        string
+	Store         struct {
 		New  bool
 		Open bool
 	}
diff --git a/hack/build b/hack/build
new file mode 100755
index 0000000..d61f0e1
--- /dev/null
+++ b/hack/build
@@ -0,0 +1,3 @@
+#! /bin/sh
+set -ex
+go build -o dist/ -trimpath -ldflags "-X main.Version=$(git describe --always --dirty)" $*
diff --git a/html/ui/index.html b/html/ui/index.html
index 06e8684..865568f 100644
--- a/html/ui/index.html
+++ b/html/ui/index.html
@@ -22,7 +22,8 @@
             <button class="link" @click="copyText(session.token)">&#x1F5D0;</button>
         </span>
 
-        <span id="uiHash">ui <code>{{ uiHash || '-----' }}</code></span>
+        <span>server <code>{{ serverVersion || '-----' }}</code></span>
+        <span>ui     <code>{{ uiHash || '-----' }}</code></span>
 
         <span :class="publicState ? 'green' : 'red'">&#x1F5F2;</span>
     </div>
diff --git a/html/ui/js/app.js b/html/ui/js/app.js
index 87368f4..2ed94e8 100644
--- a/html/ui/js/app.js
+++ b/html/ui/js/app.js
@@ -16,6 +16,7 @@ createApp({
             session: {},
             error: null,
             publicState: null,
+            serverVersion: null,
             uiHash: null,
             watchingState: false,
             state: null,
@@ -41,6 +42,7 @@ createApp({
             deep: true,
             handler(v) {
                 if (v) {
+                    this.serverVersion = v.ServerVersion
                     if (this.uiHash && v.UIHash != this.uiHash) {
                         console.log("reloading")
                         location.reload()
diff --git a/modd.conf b/modd.conf
index 201e5df..426c157 100644
--- a/modd.conf
+++ b/modd.conf
@@ -3,13 +3,13 @@ modd.conf {}
 **/*.go go.mod go.sum {
   prep: go test ./...
   prep: mkdir -p dist
-  prep: go build -o dist/ -trimpath ./...
+  prep: hack/build ./...
   #prep: docker build --build-arg GOPROXY=$GOPROXY -t dls .
   #daemon +sigterm: /var/lib/direktil/test-run
 }
 
 html/**/* {
-  prep: go build -o dist/ -trimpath ./cmd/dkl-local-server
+  prep: hack/build ./cmd/dkl-local-server
 }
 
 dist/dkl-local-server {