I was creating a Bootstrap 5 based theme for WonderCMS and needed to include Bootstrap 5 (obviously). Since I work a lot with GDPR, I also needed the inclusion to be local and not CDN based (since CDN:s can quite easily fingerprint visitors). I believe in modular design, so I made a plugin that includes Bootstrap 5 and serves it from the site (locally). That's all it does. I'll post the information about the theme in the correct section here.
You can download the plugin here:
https://github.com/joho1968/wcms-bs5-local
-joho