My value-for-value proposition

I offer 70+ software projects, programs, and libraries — free to use for anyone in the world. You can even download all the source code, and modify it to your liking. To develop open source software is not without cost though — it takes technical knowledge, time, and effort.

Is my software useful to you? You can pay what you want, but money isn't everything — there are many ways to support the open source and digital rights communities.

Thank you in advance from the free/libre open source software movement 😃

Support options

Donate using Paypal

You can also choose your own donation amount and currency at Paypal. Every once in a while I send thank-you emails to Paypal donors.

Send a postcard

Why not simply send a postcard? I rarely receive snail-mail in this digital age, and it would make my day.

Joel Purra
Wrangelstr. 55
DE-10997 Berlin
Germany

Donate Bitcoin

Bitcoin (BTC) is magic internet money, and the best option for international donations.

QR code for Bitcoin donations.

1HAd4JSniKqQbCRWhkBjvbd4Fs6cwCZoYz

The currency Bitcoin is sometimes abbreviated BTC, XBT, or just .

All Bitcoin donations can be seen in the public (but pseudonymous) blockchain ledger, for example via mempool.space alternatively via mempool⋯.onion.

Donate via bank transfer

Direct transfers to my bank account are possible internationally. This is particularly suitable for donations in Swedish Kronor (SEK) or Euro (EUR), since transactions within the European Union (EU) are fast and without fees.

Account holder Joel Purra
IBAN SE4692700000092711527077
BIC IBCASES1
Receiving bank ICA Banken AB, Sweden
Help in other ways

Each and every one can help out in free/libre open source software and digital rights organizations. It doesn't have to take much effort — start your journey based on your own abilities, wants, and needs.

  • Help someone install and use open source software.
  • Tell a few friends about open source code.
  • Share a few links to open source projects and websites.
  • Improve project translations in your native tongue.
  • Write a bug report.
  • Patch a bug and send a pull request.
  • Join an open source software workshop or meetup.
  • Attend a digital rights workshop or meetup.
  • Become a member of a digital rights organization.
  • Mention to your boss that many open source developers are happy to write code as contractors.
Support other projects

My own open source software is built with the help of many, many other open source projects — thousands when including subdependencies. Akin to standing on the shoulders of giants, I owe my career to the open source and digital rights communities.

Below are some projects, organizations, and individuals, which I consider worthy of promoting. If you would like to explore something interesting, and perhaps extend your support, these would be some of my recommendations.

Wikipedia
The largest and most-read reference work in history, with tens of millions of articles co-authored by hundreds of thousands of users. Indispensible as a source of information on almost any topic, including historical records and current statistics.
Source code, Website, Wikipedia
Haskell Dockerfile Linter
Analyze Containerfiles (Dockerfiles) and embedded scripts for best practices. Like a true container tool, it runs best from inside a container.
Source code
OpenRA
Re-implementation of the game engine in (previously closed-source) Command & Conquer: Red Alert. In a futuristic war between nations and factions of the world, players train and command military units to win over their opponents.
Source code, Website, Wikipedia
Yubikey touch detector
Linux utility which shows a notification when your Yubikey hardware token is waiting for an in-person touch confirmation. Convenient to have for both local and remote authentication, for example when signing multiple files or connecting through SSH jump hosts.
Source code
GNU General Public License (GPL)
A software license which promotes openness and collaboration. With GPL, authors require that modified versions also remain free/libre open source to its users.
Website, Wikipedia

These entries are a randomized subset, refreshed periodically. You may recognize some popular projects already; I have tried to also include lesser-known projects and individual efforts, where some extra exposure and support may make a bigger difference.

See also my list of starred repositories on Github for a much broader, mixed list of both useful and interesting projects.