Hello,
Some times ago i started to learn Erlang language. And now came a moment when it came to practice. But i haven't idea, what project. Now i have some free time and i want to start interesting project in Erlang. It will be open source under GNU/GPL and i want that it will be useful for the community to community.
If you have some ideas, please, share it.
Thank you.
Writing games is a good way to learn languages. Maybe Conway's Game of Life. That's my standard new-language project.
If you want to make something more substantial or useful, look at the tools you use from day to day and think about how they could be better. What bits of software do you wish you had? If you can't easily find high quality free solutions to a given problem, write one. Think about it while you're doing your day job. What new tools would it take to improve your work?
Sorry about most of this answer being questions. Only you can decide what's really interesting enough to work on.