ScrollStack.com is built on open source technologies. And engineers are always encouraged to contribute back to the community. Our team has open sourced a few packages that have helped us in building scalable platforms that reach 10-15 MM users every months (Scroll)
Here is the list in no particular order
Tiptapy Library that generates HTML output from JSON export of tiptap editor
Pills A simple, responsive, and tiny CSS grid
Kattappa A block based rich text editor
Querybuilder JSON query specification and implementation for Python APIs
Converge Ultra simple settings management for Python (only) applications
S3 Dumps collection scripts that can be used to backup data from programs likes PostgreSQL, Redis, Mysql. A fork of S3 Backups, with enhancements such as Python3 support, boto3 and Digital Ocean support.
Portale is minimalistic requests based HTTP/REST API client. It offers different cache timeout policy for each API.