You should try to get listed on awesome-cms [1] list now too, since you're out with public release. That was the first place I checked for options last time I needed to find a headless CMS.
The one problem then is with that style of calendar compared to the traditional month view is I need to calculate for e.g. "what is the date of Thursday in 3 weeks?"
There's 12 rows, so I believe the top row of numbers is January, the second one is February, and so on. So the 4th of July is Monday.
This is different from the OP in that it only works for one specific year, it needs to be generated anew for every single year.
I do think that having to "count rows" is a bit too much minimalism and probably we could have spared 3 characters per line in order to put month names:
2022 M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T
Jan 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Feb 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
Mar 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Apr 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
May 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Jun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Jul 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Aug 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Sep 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Oct 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Nov 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 29
Dec 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Getting and using a local copy of CyberChef (https://github.com/gchq/CyberChef) covers much more useful tools than this currently. Though this one looks a tad prettier.
I made something similar for myself, but my needs were to see local and UTC time, and to copy current unix timestamp and current ISO date-time string.
Also has some typographic trickery so the width of time shown is always constant, and doesn't "flicker" on the menu bar moving other icons by few pixels every minute.
Typically this means the team has convinced someone they know at these companies to try it or give some feedback on an early version and thus voila you'll find "used by Apple" or something impressive like that in slides :)
You're not wrong. We don't have any paying customers, but we've had discussions with people from dozens of companies, and those are the ones we chose to advertise. Only a couple are people we knew beforehand.
There's also very similar project at https://github.com/pelotom/runtypes that our company uses. Don't have enough experience with it yet to say which is better, io-ts on runtypes.
[1] https://github.com/postlight/awesome-cms