From Discord:

Exciting news: We are launching our new subscription, Typst Pro. No matter whether you are writing documentation, a thesis, or your next conference talk, there is something in Typst Pro that will help you do it better. The subscription includes a fullscreen presentation mode, reference sync to Zotero and Mendeley, and more storage and files per project (in very high demand on this server 😉). Soon, we’ll add even more powerful features like comments and private packages.

Typst Pro subscriptions apply to typst.app and extend it with powerful new features. Of course, the Typst compiler stays open-source and free to download, modify, and use.

We hope you’ll check out Typst Pro. Subscribing is one of the best ways to support Typst’s development! Learn more on https://typst.app/pricing/