Technical writing and random thoughts.

Study notes of Olympiad in Informatics.

A database for Chinese OI participants.

An amateur radio station.

An educational and research network.

An experimental network.

Online judge system for Shijiazhuang No.2 High School. Based on UniversalOJ.

An universal online judge system.

A pure, modern and simple theme for Gridea.

A pure, modern and simple theme for Hexo.

Blog of @Showfom.

Luogu Remote Judge module for Universal Online Judge.

A one-click blogging solution for OIers.

A tool for batch submitting URLs to the Internet Archive.

A rating badge for Codeforces.

A rating badge for AtCoder.