Today I learned about Mermaid diagrams which are created from plain text. Turns out even GitHub markdown supports them and LLMs are great at generating them.
It was in 2012 when I first learned about AngularJS and the reactivity it brought to HTML with just a few changes to the markup. https://www.youtube.com/watch?v=uFTFsKmkQnQ
Another opportunity is around WordPress package distribution and signing. The public-private key identities would allow for a system similar to FAIR. In fact, there is a proposal to get a DID added for Nostr keys.
The biggest opportunity I see is around micropayments. Imagine one-tap micropayments for content, plugins, themes and other items that we're currently just giving away for free. Heck, even AI crawlers could use that to pay for access to content.
Unfortunately, the Lightning payments are still very complicated to set up unless you used a paid solution like https://albyhub.com ($13/month).
Over the weekend I researched the Nostr protocol and the community. It is a Twitter/ActivityPub/AT alternative (but so much more) that relies on public-private keys for identity and message signing, and decentralized relays for distribution.
It allows extending the protocol through NIPs (Nostr implementation possibilities). There are now email-like identities for easier addressing and micropayments through Bitcoin Lightning network, for example.