铜钟 Tonzhon ( https://tonzhon.whamon.com ): 只有音乐, 无广告和社交; 干净纯粹, 资源丰富, 体验独特！(请注意：铜钟已不再使用 tonzhon.com 这个域名，现在的 tonzhon.com 网站不是正版的铜钟)

Unofficial ProtonMail Desktop App

A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

A simple shortcut menu for macOS

A Chrome extension helping users access their web services while traveling outside mainland China

Codespaces but open-source, client-only and unopinionated: Works with any IDE and lets you use any cloud, kubernetes or just localhost docker.