book VS org-inline-clocking-buttons

Another good resource on intro crypto is @lvh's Crypto101 book: https://www.crypto101.io/

There are also some basic practical exercises (I don't believe the projects are technically related, but are in similar veins): https://cryptopals.com/

Sure! I didn't blog about it, but it is in the issue tracker of e.g. https://github.com/crypto101/book.

> but that is unfortunate IMHO because your first criticism is very valid: there are no good Org tools for phones.

Speaking from an android perspective:

Best is organice (but requires local android webdav server if you don't want to connect to github) for most people design-wise I think.

Others will prefer orgzly.

> This is fine if you live in Emacs and only in Emacs, but if you don't and you'd like to read and modify your files on the go, simply going with the format that for better or worse the rest of the internet has standardized upon, is the much better option.

emacs is available on fdroid now and using a bluetooth keyboard it's a good experience. I hope to improve the touch experience, for instance I recently released a library to make clocking in/out on mobile or just by mouse easier:

https://github.com/ParetoOptimalDev/org-inline-clocking-butt...

I intend to try and make org-mode usable by touch in emacs on android eventually, but it'll be slow and according to things I really need as I need them.