Claude Meter
A local-first menu bar app that shows how much Claude usage remains across each account.
- Swift
- macOS
- Claude Code
Senior software engineer · backend architect
Hi, I’m Jewei.
I build reliable software and useful tools. I write about what I learn.
Backend systems, product architecture, developer experience, and AI-assisted engineering.
Selected Work
Tools and libraries for problems that kept asking to be solved.
Bopop
A keyboard-first launcher for apps, files, clipboard history, calculations, and small answers.
- Swift
- AppKit
- macOS
Uppa
A self-hosted uptime monitor and public status page that runs on Cloudflare Workers.
- Cloudflare Workers
- D1
- Bun CLI
TypeID PHP
Type-safe, sortable identifiers for PHP applications, with readable prefixes built on UUIDv7.
- PHP 8.4+
- Composer
- UUIDv7
Experience at scale
A compact record of the systems behind the work.
- 15+
- years building software
- 1M+
- users served
- 50K+
- monthly transactions supported
- 10+
- payment providers integrated
Backend systems · APIs · payment infrastructure
Pinned Posts
A good place to start.
Claude Meter 2.0: Your Claude Usage, Now With Energy
Claude Meter 2.0 reimagines your Claude usage as energy you have left — a playful redesign with a card per account and make-it-yours customization. Free and open source for macOS.
Introducing TypeID PHP
Type-Safe, Sortable Identifiers for Modern Applications
Latest Writing
Recent notes on software, systems, and making things.
A new look
Serif text, fewer boxes, and more space for the work and writing.
A performance review of how I use AI
What I do well with AI coding agents, where my habits cause problems, and what I want to change. A personal review based on two assessments of my chat history.
Full Page: capture a complete page in Brave
A Brave extension that captures a complete web page as one PNG, with a local preview and no image uploads.
Uppa: A Small Uptime Monitor at the Edge
A self-hosted uptime monitor and public status page built for Cloudflare Workers.
Bopop: press, type, go
I built Bopop, a keyboard-first launcher for macOS. Local-first, no Accessibility permission, zero dependencies. Free and open source.
Claude Code Tips
A growing list of practical tips for developers running Claude Code day to day. Small settings and habits that make the agent faster, cleaner, and less noisy.
New posts land in the RSS feed first. You can also say hello.
Topics
Threads through the working notebook.