Donating to open-source seems like such a good use of charity money. I never give to charity because it always seems so abstract, or there might be better ways to solve the problem; with open source people are usually laboring over it with no recognition, and even a little seems like it has such high marginal benefit.

I'm in-between jobs right now(occupied with a side project), but at some point I'd really like to fund feature development on some open source projects:

* GNUCash has a solid heart, but has some usability issues that make it a pain to use in practice.

* Freenet last I checked had only 1 fulltime developer. And he's probably taking a serious cut to market salary to work on it.

* GHC could stand to have some performance optimization done on the compiler.

* Inkscape or GIMP are handy to have around. Inkscape even has a page describing how you can host a fundraiser for targeted feature development, which is very rare for open-source.

* I don't know that TOR needs much software help, but I wouldn't mind funding some exit nodes. It'd be nice if you could buy a locked-down black-box exit node that you could plug into your wall or something, that was guaranteed not to incriminate you. Maybe outside the scope of this, though.

* Everyone has a little app or site they use where a few people are working without much benefit to maintain something you use all the time.

Is there a good list of needy open-source software?

I wonder, why they have chosen Freenet? Not I2P [1] as much more modern alternative and active community, bigger and faster network, bigger dev crew. Also I'd like to mention C++ implementation [2] of I2P client, since it's more important for bringing it on the microcontrollers, IoT, mobile devices, like Tor. It will produce smaller binary and less memory footprint.

[1] https://geti2p.net/en/

[2] https://github.com/PurpleI2P/i2pd