Org-fc is a spaced-repetition system for Emacs' org-mode.

It allows you to mark headlines in a file as "flashcards", turning pieces of knowledge you want to learn into a question-answer test.

These cards are reviewed at regular interval. After each review, a Repetition Spacing Algorithm is used to calculate the next interval based on how well you remembered the contents of the card.

I am not gonna read this postmortem, but post link to this HN thread as a proof of mass IPv6 adoption.

Sorry, I thought that it would sound like a fine joke. Don't want to offend someone

I remember findind this site when solving exercise of creating sign function for Z with arithmetic operators only. I used this[1] page to cheat and reimplement mod in C (by default % is rem) with defined zero. Unfortunately it doesn't helped me yet, but I still like this site.

[1]: https://proofwiki.org/wiki/Definition:Modulo_Operation/Modul...

Emacs has a mode called cua-mode with keybindings thats more simillar to ones from other modern gui programms like browser.

It's a tiny tweak that gives something like 1% of the functionality.

The real, useful, working CUA mode for Emacs is here:

https://ergoemacs.github.io/

I use emacs and I respect emacs developers, but it is not originally emacs bindings: http://unix-kb.cat-v.org/

It somehow happens that OpenBSD feels like an whole operating system rather than Linux distro built from various components. For example, when pledge(2) and unveil(2) appeared, many user-space programms got patched as soon as possible. You can see simillar process now, after pinsyscall(2) appeared and syscall(2) was removed.

I heard, that there is something simillar in FreeBSD with zstd compression.

For me cons is that you can't run some programms that depends on Linux kernel insides, like rr debugger, which depends on some specific of linux ptrace(2): https://github.com/rr-debugger/rr?tab=readme-ov-file#system-...

You can edit /etc/firefox/unveil.main and add string like "~/Documents rwx" so it would be available from firefox

But apparmor is more complex system and in fact is an RBAC. unveil(2) is much more easier in implementation and enforcing.

OpenBSD is in fact already pretty much user-friendly. Installer is simple, althought an a textual interface. It comes with preinstalled X server and window managers fvwm and cwm. In the installer you can choose Xenodm to start automatically after boot, it would be your display manager and you can just simply login through it to fvwm. From here you can edit .xsession and choose any window manager you installed or pre-installed cwm.

Indeed. But lisp is much more than prefix notation.

Different notations like revers polish notation also easier to parse. You can evaluate RPN only using stack.

Also, recently I learned about thread-last macro in emacs lisp. Using it you can evaluate forms from left to right, and using it you can write less parenthesis.