diff --git a/.gitignore b/.gitignore
index 1dbaf894..6f3a1e8c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,9 @@
 node_modules/
-.turbo/
+dist/
 .env
 .env.*
 !.env.example
 docs/
+
+# moon runtime cache
+.moon/cache/
diff --git a/.moon/toolchains.yml b/.moon/toolchains.yml
new file mode 100644
index 00000000..bcafd62b
--- /dev/null
+++ b/.moon/toolchains.yml
@@ -0,0 +1,14 @@
+$schema: 'https://moonrepo.dev/schemas/toolchains.json'
+
+# javascript must be enabled alongside bun
+javascript: {}
+
+bun:
+  version: '1.3.11'
+  # Auto-install deps when lockfile/manifest changes
+  installDependencies: true
+
+# Rust toolchain — no crates yet, but enabling it now means
+# moon will automatically understand Cargo.toml files and
+# track Cargo.lock for hashing when they appear.
+rust: {}
diff --git a/.moon/workspace.yml b/.moon/workspace.yml
new file mode 100644
index 00000000..2f52bb98
--- /dev/null
+++ b/.moon/workspace.yml
@@ -0,0 +1,6 @@
+$schema: 'https://moonrepo.dev/schemas/workspace.json'
+
+# Discover all projects under apps/ automatically.
+# When Rust crates land, add a 'crates/*' glob here.
+projects:
+  - 'apps/*'
diff --git a/.prototools b/.prototools
new file mode 100644
index 00000000..da366ed1
--- /dev/null
+++ b/.prototools
@@ -0,0 +1,4 @@
+# proto pins tool versions workspace-wide.
+# Every developer and CI machine gets the exact same versions automatically.
+moon = "2.3.3"
+bun  = "1.3.11"
diff --git a/README.md b/README.md
index 7cb64fea..617893c8 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,26 @@
 
 You can still find the previous version at [opencut-app/opencut-classic](https://github.com/opencut-app/opencut-classic), which is the one to reach for today. [opencut.app](https://opencut.app) still runs the classic version; the rewrite will live at [new.opencut.app](https://new.opencut.app) until it's ready to take over.
 
+## Development
+
+Install [proto](https://moonrepo.dev/proto) if you haven't already:
+
+```sh
+bash <(curl -fsSL https://moonrepo.dev/install/proto.sh)
+```
+
+From the repo root:
+
+```sh
+proto use    # installs bun + moon at the versions pinned in .prototools
+bun install
+```
+
+```sh
+moon run web:dev   # localhost:5173
+moon run api:dev   # localhost:8787
+```
+
 ## Contributing
 
 We're not set up to take outside contributions yet while the architecture is being designed. If you want to follow along, ask questions, or just hang out, [join the Discord](https://discord.gg/zmR9N35cjK) or [open an issue](https://github.com/opencut-app/opencut/issues).
diff --git a/apps/api/moon.yml b/apps/api/moon.yml
new file mode 100644
index 00000000..9ac80080
--- /dev/null
+++ b/apps/api/moon.yml
@@ -0,0 +1,24 @@
+$schema: 'https://moonrepo.dev/schemas/project.json'
+
+language: 'typescript'
+layer: 'application'
+
+tasks:
+  dev:
+    command: 'bun run dev'
+    options:
+      runInCI: false  # dev server — skipped in CI, never cached
+
+  build:
+    command: 'bun run build'
+    inputs:
+      - 'src/**/*'
+      - 'wrangler.jsonc'
+      - 'package.json'
+    outputs:
+      - 'dist'
+
+  deploy:
+    command: 'bun run deploy'
+    deps:
+      - '~:build'
diff --git a/apps/web/moon.yml b/apps/web/moon.yml
new file mode 100644
index 00000000..cb7c1101
--- /dev/null
+++ b/apps/web/moon.yml
@@ -0,0 +1,32 @@
+$schema: 'https://moonrepo.dev/schemas/project.json'
+
+language: 'typescript'
+layer: 'application'
+
+tasks:
+  dev:
+    command: 'bun run dev'
+    options:
+      runInCI: false  # dev server — skipped in CI, never cached
+
+  build:
+    command: 'bun run build'
+    inputs:
+      - 'src/**/*'
+      - 'public/**/*'
+      - 'vite.config.ts'
+      - 'tsconfig.json'
+      - 'package.json'
+    outputs:
+      - 'dist'
+
+  test:
+    command: 'bun run test'
+    inputs:
+      - 'src/**/*'
+      - 'tsconfig.json'
+
+  deploy:
+    command: 'bun run deploy'
+    deps:
+      - '~:build'
diff --git a/package.json b/package.json
index c7b6a212..64a8a5db 100644
--- a/package.json
+++ b/package.json
@@ -1,19 +1,14 @@
 {
   "name": "opencut",
   "private": true,
-  "workspaces": ["apps/*", "architecture"],
+  "workspaces": ["apps/*"],
   "scripts": {
-    "dev": "turbo dev",
-    "dev:web": "turbo dev --filter=@opencut/web",
-    "dev:architecture": "turbo dev --filter=@opencut/architecture",
-    "build": "turbo build",
-    "deploy": "turbo deploy"
+    "dev": "moon run web:dev api:dev",
+    "dev:web": "moon run web:dev",
+    "dev:api": "moon run api:dev",
+    "build": "moon run :build",
+    "test": "moon run :test",
+    "deploy": "moon run :deploy"
   },
-  "devDependencies": {
-    "turbo": "latest"
-  },
-  "packageManager": "bun@1.3.11",
-  "dependencies": {
-    "opencut": "."
-  }
+  "packageManager": "bun@1.3.11"
 }
diff --git a/turbo.json b/turbo.json
deleted file mode 100644
index da25cd2d..00000000
--- a/turbo.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "$schema": "https://turbo.build/schema.json",
-  "tasks": {
-    "build": {
-      "dependsOn": ["^build"],
-      "outputs": [".output/**", "dist/**"]
-    },
-    "dev": {
-      "cache": false,
-      "persistent": true
-    },
-    "deploy": {
-      "dependsOn": ["build"]
-    }
-  }
-}