I don't typeset music myself but I've heard that LilyPond is very good. It is based on LaTeX.
I use Liberapay and have been pretty happy with it. Have found quite a few of the people and projects to which I would like to donate, but not all.
I use Runbox, and have for many years. Overall I've been happy with them. I think they have the features you are looking for.
Spångest intensifying...
That's really cool! Can you tell some about the lense and what kind of post-processing did you do for this picture?
I'm sure you'll have a lifetime worth of fun before then, though.
I suspect that the Belgium-Netherlands border defies any mathematical description.
Definitely! There are so many jobs with heavy lifts where something like this could help. Spanning all the way from construction to health care.
I would have guessed that this was an authentic photo based on them showing up correctly in the mirror. Can AI image generators handle mirrors? That would be seriously impressive to me.
Username checks out...
... and the cat being right in the focal point of the lines separating the lit and shaded areas. Very pleasing to look at.
Hmm, maybe you're thinking about somebody else? The guy I know of as putting lead in gasoline went on to put CFCs in fridges...