Joined 2 years ago.


Goal: €150.00 Income: €55.99/week


I'm an independent computer programmer, I spend most of my time creating, improving, and maintaining free software (and other commons). To fund my work I have chosen to rely on the direct support of the community. My first goal is to receive around €500 per month. My second goal is to cross the €1000 threshold in order to get close to the minimum wage of my country (France).

My personal website is, see the contact page if you want to get in touch with me. Below is a summary of my work.

Free software and Open Data

I am the creator of Liberapay, the website you're on right now, and before that I had contributed a lot to its predecessor (Gittip/Gratipay).

I maintain several other free software projects, mostly written in Python, you can see them on my GitHub account.

I'm also interested in OpenData. I've been working on since the database of French laws was released as open data in 2014. One of the things my code does is generate lists of anomalies in the data, to encourage the maintainers to correct them. Since December 2016 the lists are published on

I'm an ArchLinux user, throughout the years I've added some packages to the AUR, contributed to the wiki, and a long time ago I wrote the original implementation of the -Qk command for pacman.

I'm also thinking about creating a new programming language (relatively close to Python but with the changes necessary to allow full static typing, fast compilation, and good run-time performance).

Knowledge sharing

I've spent a lot of time in the past years accumulating and sharing knowledge on economic and societal topics such as basic income, monetary systems, democratic processes, etc. I mostly write about all that in French, on Reddit, on Diaspora*, etc.

Accounts Elsewhere

Changaco owns the following accounts on other platforms:


unicode-progress-bars    14   Updated 1 month ago

A generator of Unicode progress bars    82   Updated 2 months ago

Automatic version numbers for git-based python projects

python-libarchive-c    23   Updated 2 months ago

Python interface to libarchive

gitit-bootstrap    19   Updated 3 months ago

A gitit theme based on Bootstrap

python-etherpad_lite    12   Updated 1 year ago

Python interface for Etherpad-Lite's HTTP API

nosudo    2   Updated 1 year ago

A small bash script that fakes sudo using su

xmpputils    3   Updated 2 years ago

Two XMPP utils: echobot and sendxmpp

feed-push    1   Updated 2 years ago

A daemon that watches local RSS/Atom files for changes



Income history

Euros Received Per Week


Number of Patrons Per Week