I run:
* https://uxwizz.com - website analytics and Hotjar alternative
* https://discourse.org - for a forum
* https://fider.io - for customer feedback/roadmap
* https://nextcloud.com - As a Dropbox alternative
* https://wordpress.org - For some blogs
* https://www.photoprism.app - To back up my photos/videos
* several custom Node.js applications
Currently 100 answers there...