I've had a private installation of dokuwiki for years, but didn't use it for a large chunk of time. Within the last year, I've started using it again, and I really like it. This thread on lobste.rs has some great comments on the benefits of keeping one, and even more so, on making it public. Not sure I'm doing the public thing yet, but I'm definitely using it more and more.
The great thing about dokuwiki is, that it's just txt files underneath, so you can read and edit them with a text editor as well, if you prefer.
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On why passwords aren't going away anytime soon.
Via the always excellent Bruce Schneier.
Artikel om danske soldater i 1. Verdenskrig.
If you are a Chromebook user, and you want to get a nice setup for developing on your Chromebook, this is my goto article. Goes through how to get functioning CLI environment, editor, ssh, etc. Termux is a brilliant app.
I think this is as close as you can get, to Photoshop in a browser. Impressive work.