I have multiple (in no particular order) :

Nextcloud : It was an idea that I had in my head as well - to take on corporations like Google in the space of personal cloud. Be free, open-source and put the users in charge.

Gitlab : The most open and transparent company that I've ever come across. And they work 99% remote. They've got features that no other players in the space have. All while putting users in control.

Fediverse social media - Mastodon, GNU Social, Diaspora (soon) : For taking a major step in the direction of putting the users in control of their data; all while enabling a decentralized social network.

Ruby : An open community and building a programming language that runs a lot of software of the world.

Python : The oldest thriving community that has a special place in the development community (and my heart)

Javascript / ECMAScript : The scripting language that grew to be a beast of it's own.