All #FreeSoftware licenses are compatible with each other - True or false?

a) True. All Free Software-licensed code can be combined in the same software project

b) True. All Free Software-licensed code become copyleft licensed when combined in the same software project

c) False. Some Free Software licenses, and particularly copyleft licenses, can create license incompatibilities

d) False. Free Software-licensed code must only be combined and reused with code with the same license

Remember being 15, fixing things nobody asked you to fix, staying up way too late debugging stuff for fun? We built the contest we wish had existed back then. 🤩

Any Free Software project. 6 months. No fixed topic. Up to €4096 + a trip to Brussels to meet their people.

Ages 14–18, anywhere in Europe. Solo or team. Totally beginner-ok.

📣 If you know a young hacker, tell them about it!

🔗 https://yh4f.org/register

🔗 More information on https://yh4f.org

#YH4F #FreeSoftware

The 1st day of #CLT26 is nearly over! As always, we are happy to be part of Chemnitz Linux Days with its great community and lots of interesting talks and projects.

In case you didn't make it to our booth today, you can still come by tomorrow to learn about our current activities, to take some stickers or to get your FSFE shirt or hoodie.

See you tomorrow!

#CLT #FreeSoftware #PublicCode #OpenSource

🧡 @protonprivacy : a big thank you for donating to the FSFE  again this year!🚀

It means a lot to have donors who come back year after year!

💥 We are also grateful for our great community and all the individual supporters that show up when it matters most. When we need you, you're there. That is what makes our #FreeSoftware community so awesome!

Thank you !!!💪

https://fsfe.org/donate/thankgnus-2026.html

#SotwareFreedom #ThankYou

Der Abschluss des Gautinger Internettreffens naht 😢 um so schöner ist gerade die letzte Talkrunde des Tages. Unter dem Thema "Digital & Selbstbestimmt" hat @studioimnetz über die letzten zwei Tage eine wundervolle Fachtagung organisiert.

Wir freuen uns sehr von der FSFE mit @johas und @annabonnie dabei gewesen zu sein, uns zu vernetzen und auszutauschen 💥

#FreeSoftware #SoftwareFreedom

Ever cloned a repo and had no idea what licence a specific file was under? 🔍

REUSE fixes this by putting licence and copyright info directly into every file. Three steps, zero ambiguity.

Check it out at https://reuse.software/

#REUSE #FreeSoftware

Did you wonder what the FSFE's local groups are up to?

For our 49th episode of the #SoftwareFreedom Podcast we had @ralfhersel from @gnulinux and the host of their "Captain it's Wednesday" #podcast as well as a member of the FSFE local Zurich group as our guest!

Ralf and @annabonnie talk about the activities run by the local group and give some background on GNU/Linux.ch.

https://fsfe.org/news/podcast/2026/episode-49.html

A usual workday for us?
Today our wonderful colleague @dario is in the #EU parliament talking to policymakers and ensuring that #RouterFreedom will be secured for all #european users 🇪🇺

Support our work for #SoftwareFreedom today: https://fsfe.org/donate

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