Things I've built

CliHanger

v0.2.0 · MIT · macOS 12+ · Apple Silicon · tmux 3.2+

One window for all your coding-agent CLIs.

Run Claude Code, Codex, and Antigravity side by side, grouped by project. CliHanger shows which agent is waiting on you, and which forgotten session owns port 3000.

• A “Waiting for you” queue for agents stopped on a prompt or approval, with native notifications and ⇧⌘J to jump to the oldest.
• A ports panel that traces each listening port back to the session that started it, with a Stop button.
• Sessions run in tmux, so they survive reloads and you can attach from Terminal.app at any time.
• A ⌘P quick switcher, and agents defined as data in ~/.hangar/agents.json.

Works with

Claude CodeCodex CLIAntigravityzsh / bash / fish

Built with

Electronxterm.jsnode-ptytmux

Turn any public URL into a PNG with one API call.

A self-hostable screenshot API built on Node.js, Express, and Puppeteer. Pass a URL, plus an optional viewport size and wait time, and get a PNG back. It ships with the guardrails a public endpoint needs.

• One endpoint, GET /screenshot, with width, height, wait time, and an optional download filename.
• Reuses a warm Chromium instance, with a bounded queue so traffic spikes don't overload it.
• Blocks localhost, internal hostnames, and private IP ranges to prevent SSRF.
• Per-IP rate limiting, health and readiness endpoints, and graceful shutdown for PM2 or systemd.

Good for

Link previewsQA snapshotsDashboardsAutomation

Built with

Node.jsExpressPuppeteer