drumih
turbo-fieldfare
TurboFieldfare is a custom Swift and Metal runtime that runs the Gemma 4 26B-A4B instruction-tuned model in about 2 GB of RAM on Apple Silicon Macs, including 8 GB models, by streaming experts from SSD.
AI repository intelligence
FR-AI / ANALYSISWhy it is worth attention
It achieves a truly browserless experience in a single Swift file (~450 KB) without Electron, offering native performance and a unique combination of fullscreen browsing, pinned windows, and automated screenshot capabilities.
Who it is for
- Web developers needing accurate page screenshots
- Designers capturing clean webpage visuals
- Dashboard users wanting fullscreen or always-on-top views
- Minimalist users seeking a no-chrome browsing experience
Use cases
- Taking Retina-quality PNG screenshots of web pages via keyboard shortcut or CLI
- Watching YouTube in fullscreen without any browser UI
- Pinning a dashboard or live chart window above other apps
- Automating webpage snapshots in scripts with configurable size and wait time
Strengths
- Extremely lightweight (~450 KB) with no Electron or external dependencies
- Native macOS performance using Safari's WKWebView engine
- Keyboard-driven interface with intuitive shortcuts for navigation, zoom, and snapshots
- Built-in CLI mode for headless screenshot automation
Considerations
- macOS only; no Windows or Linux support
- No tabs, bookmarks, history UI, or extensions by design
- WebAuthn/passkey support requires Apple Developer Program membership and manual entitlement setup
README quick start
chromeless
The browser that isn't there. The window is the webpage — no tabs, no toolbar, no address bar, no chrome at all. Made for clean screenshots, fullscreen YouTube, dashboards, and anything else that deserves the whole window.
A native macOS app in one Swift file, built on WKWebView (the Safari engine). No Electron, no dependencies, ~450 KB built.
Build
./build.sh # → Chromeless.app
open Chromeless.app
Requires the Xcode Command Line Tools (xcode-select --install). Optionally mv Chromeless.app /Applications/.
Use
Everything is a keystroke (also listed on the start page and in the menu bar):
| Keys | Action |
|---|---|
⌘L | Search or enter a URL (floating HUD) |
⌘drag | Move the window from anywhere |
⌃⌘F | Fullscreen (YouTube's own ⛶ button works too) |
⇧⌘S | Snapshot the page as PNG → Desktop |
⌘P | Pin the window above everything |
⌘[ / ⌘] | Back / forward (two-finger swipe also works) |
Esc | Bail out — back to the start page (⌘[ returns) |
⌘= ⌘- ⌘0 | Zoom in / out / reset (pinch works too) |
⇧⌘C | Copy the current URL |
⌘R / ⇧⌘R | Reload / reload ignoring cache |
⌘N / ⌘W | New window / close window |
The traffic-light buttons exist but stay invisible — hover the top-left corner to reveal them. The window remembers its frame and reopens your last page.
CLI screenshot mode
Chromeless doubles as a webpage-to-PNG tool:
./Chromeless.app/Contents/MacOS/Chromeless https://example.com --snap shot.png --size 1440x900
./Chromeless.app/Contents/MacOS/Chromeless localhost:3000 --snap dev.png --wait 3
It loads the page, waits for it to settle, writes a Retina PNG, and exits.
Notes
- Cookies and logins persist (kept in
~/Library/WebKit/com.chromeless.app/), so YouTube stays signed in.
Passkeys
Apple gates WebAuthn in WKWebView behind the restricted com.apple.developer.web-browser.public-key-credential entitlement, and macOS kills ad-hoc builds that claim it without an Apple-issued provisioning profile (verified: instant SIGKILL). Chromeless checks its own signature at runtime:
- Default build (no entitlement): the WebAuthn API is hidden, so sites feature-detect the absence and offer their fallbacks instead of a doomed passkey prompt. For Google, "Try another way" → "Get a prompt on your phone" signs you in with no pas
Description
The browser that isn't there — zero-chrome macOS browser for clean screenshots and fullscreen video. One Swift file.
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