Show us your half baked, not really ready for prime time projects.
Or just whatever open source stuff you’ve been contributing to lately!
For me, it’s https://openlibrary.org I’ve been working on having author pages populated with data from wikidata. Also a few other small things with documentation and small UI bugs :)
You only need to publish your changes to your users, if you are the only the user you don’t have to publish anything.
Not sure if adoption by businesses is really wanted? Unless their goal is aligned with our cause but from profit seeking perspective I don’t see how. But you are welcome to change my mind.