diff --git a/scripts/build.ts b/scripts/build.ts
index a9ec5a9..c9483da 100644
--- a/scripts/build.ts
+++ b/scripts/build.ts
@@ -9,6 +9,7 @@ import { join } from 'path'
 
 const DIST_DIR = join(import.meta.dir, '..', 'dist')
 const ENTRY_POINT = join(import.meta.dir, '..', 'src', 'cli', 'index.ts')
+const GIT_SHA = Bun.spawnSync(['git', 'rev-parse', '--short', 'HEAD']).stdout.toString().trim() || 'unknown'
 
 interface BuildTarget {
   arch: string
@@ -40,6 +41,7 @@ async function buildCurrent() {
     'bun',
     '--minify',
     '--sourcemap=external',
+    `--define=__GIT_SHA__="${GIT_SHA}"`,
     '--outfile',
     output,
   ], {
@@ -73,6 +75,7 @@ async function buildTarget(target: BuildTarget) {
     `bun-${target.os}-${target.arch}`,
     '--minify',
     '--sourcemap=external',
+    `--define=__GIT_SHA__="${GIT_SHA}"`,
     '--outfile',
     output,
   ], {
diff --git a/src/cli/setup.ts b/src/cli/setup.ts
index e843a10..7e9be8e 100644
--- a/src/cli/setup.ts
+++ b/src/cli/setup.ts
@@ -3,6 +3,7 @@ import { program } from 'commander'
 import color from 'kleur'
 
 import pkg from '../../package.json'
+import { SHA } from './version'
 import {
   cronList,
   cronLog,
@@ -29,7 +30,7 @@ import {
 
 program
   .name('toes')
-  .version(`v${pkg.version}`, '-v, --version')
+  .version(`v${pkg.version}-${SHA}`, '-v, --version')
   .addHelpText('beforeAll', (ctx) => {
     if (ctx.command === program) {
       return color.bold().cyan('🐾 Toes') + color.gray(' - personal web appliance\n')
diff --git a/src/cli/version.ts b/src/cli/version.ts
new file mode 100644
index 0000000..0f3dac6
--- /dev/null
+++ b/src/cli/version.ts
@@ -0,0 +1,3 @@
+declare var __GIT_SHA__: string
+
+export const SHA: string = typeof __GIT_SHA__ !== 'undefined' ? __GIT_SHA__ : 'dev'