I highly recommend the Outlier Dictionary, an addon for Pleco. It covers about 4000 characters, so won’t include very rare ones like 忻. Pleco itself will show basic decompositions like 忻 = 忄+ 斤.

There used to be an offline mobile app for HanziCraft, but the app seems to be gone now (a little annoying, since I’m pretty sure I paid for it).

Project Euler if you don’t mind more mathematical problems.

Oppa homeless style vibes.

This is what Donald Knuth is doing with TeX :)

Wikipedia:

Since version 3, TeX has used an idiosyncratic version numbering system, where updates have been indicated by adding an extra digit at the end of the decimal, so that the version number asymptotically approaches π. This is a reflection of the fact that TeX is now very stable, and only minor updates are anticipated. The current version of TeX is 3.141592653; it was last updated in 2021.

If you happen to speak Chinese, PTT.

I like how they edited it to “didn’t loss” after your comment.

!linkedinlunatics@sh.itjust.works

For anyone on Lemmy interested in these issues there’s also a !mensliberation@lemmy.ca.

The first democratic election in Taiwan was in 1996. Probably a major reason why the Taiwanese are so wary of Chinese influence is because most voters have actually lived through authoritarian rule.