# Beer and Open Source

## Free as in beer

Sven Wagner

## Who Am I?

Sven Wagner

- ### Open Source

  - Linux User >20years
  - Running several web, mail, XMPP server
  - After many trials, nearly every computer runs Debian

- ### Beer

  - Started apprenticeship in a small brewery in 1996
  - TU München Weihenstephan from 1998 - 2002
  - Nearly 20 years commissioning of brewerys world wide
  - 2017 Co-founder of Waschraumbrauerei
  - 2020 Co-founder of freibier.cc

## freibier.cc

Open Source Beer from Regensburg

- Small single brew batches
- Beer recipes published in public domain (CC-0)
- All used materials with supplier and batch number available

## How it all began?

It all began with planned MiniDebConf Regensburg 2020

- Plan to make beer, company founded, but no idea at all about a concept.
- One day, Cold Tobi asked, if we can brew a beer for his planned MiniDebConf, we agreed.
- On week later, Tobi mentioned, that if we brew a beer for the MiniDebConf, it has to comply with the DFSG

## License for beer recipes

Why we use CC-0

- In germany recipes have no threshold of originality by law
- Only possible way was to hide it or release it to the public domain

## Open Knowledge and Hobby Brewer

Everybody shares everything

- If you ask, everybody will tell you his recipe.
- A lot of people publish theire recipes in billboards, blogs, recipe databases.
- Even on tournaments and championships, everybody is explaining you to the detail, how he made his beer

## Open Knowledge and Pro-Brewer

- If you ask, everybody will tell you his recipe.

## Do we use Open Source Software?

Yes we do!

- Webserver is running Debian Bullseye with Nginx
- Blog on Homepage is build with Pelican
- Font for labels and homepage is under OFL
- Collaboration with Nextcloud on web server
- Mailserver Debian Bullseye, Postfix, Dovecot, Rspamd, MariaDB
- Code organisation of Homepage and other projects done with Git and Gitea
- Other projects: PLC of our labeling machine is arduino compatible
- Backup of all that by rdiff-backup

## Are We the First / Only Open Source Brewery

No, and that is a good thing!

- FreeBeer.org -> CC BY-SA 4.0 since 2005
- Nerdbrewing.se -> no idea about license since 2015
- Modern Times beer since 2012
- Even Brewdog releases all recipes

## Open Source Projects for Brewers

Well, you find a lot of free as in beer stuff...

## ArdPressureFiller

pressure filler for beer botteling

- Two github repositories, one for code, one for 3D printed parts

- Parts
- Code

- Like so often, no license mentioned, just released on github.

## BrewPi

Automatisation of your home brewery with a RaspberryPi

- GNU Affero General Public License v3.0
- Homepage
- Github

## BrewUNO

Automatisation of your home brewery with an ESP 8266

- Homemade License
- "It's permitted to modify for personal use. It's not permitted to distribute the modified project."
- Homepage
- Github

## iSpindel

Electronic Hydrometer with ESP 8266

- Homemade License
- "It's permitted to modify for personal use. It's not permitted to distribute the modified project. Modification can be distributed via the official iSpindel release only."
- Homepage
- Article in Hackaday

## freibier.cc EtiMa

Control for Chinese labeling machine MT-50, LT-50 ....

- GPL V3
- Git