- Gitlab and Gitlab CI

- Zulip chat(moved from Mattermost)

- Metabase for data visualization(will be adding InfluxDB soon)

- Self Hosted Sentry(error reporting): Sentry is linked with Gitlab and Zulip for alerts

- Taiga: project management tool

- OpenEDX: a beast :)

We are Python(Django) based ourselves and love that we can tinker with many of these tools as they are too Django based.

At personal level, I use:

- Mailinabox: Self hosted mail

- Nextcloud: For file syncing, contact management, calendar and tasks, notes.

I have also looked at Perkeep several times(even set it up two times) but couldn't include it in workflow. Especially mobile file syncing.