Canvas LMS
enterprise-grade learning management system
Catarse
open-source crowdfunding platform
Danbooru
taggable image board
forem
the platform that powers dev.to
GitLab
self hosted Git management
iNaturalist.org
social network for nature stuff
libraries.io
open-source discovery service
samson
Web interface for deployments
TaxonWorks
workbench for biodiversity informatics
va.gov
API for va.gov
vglist.co
video game library tracking