monolifed
monolifed
Using a service like [weblate](https://hosted.weblate.org) or [crowdin](https://crowdin.com) may help keeping the translations up to date and adding more languages.
https://github.com/monolifed/vmath it has basic operations for * 2x2, 3x3, 3x4, 4x4 matrices, * 2, 3, 4 dimensional vectors, * and quats.
https://github.com/monolifed/tiny-regex-mod My modification of tiny-regex-c as a single file with a few more features. (It is based on https://github.com/kokke/tiny-regex-c)