My #FOSDEM highlights:

- OpenFlexure (https://openflexure.org/ an open-source microscope capable of functioning as a whole-slide scanner, with mostly 3D printed parts and a price tag of around 300 euros to buy a full assembly kit including 40x magnification lenses. Honestly, the images I saw were of the same quality as the very expansive scanners that produced the images I used during my thesis. Super impressive.
- xan (https://github.com/medialab/xan/), a command-line tool to manipulate CSV files. I'm not doing much data analysis these days but this looks like a very handy tool for tabular data handling!
- Execubot (https://execubot.fr/), a "serious game" to teach high school kids Python programming. Make a cute little robot move according to a set of instructions written in Python, or write the instructions yourself. Looks great.

In general I was very impressed by the insane amount of talent on display here, by people putting their work out there for everyone to use and build on.