A whimsical landing page for announcing my tour of Mu

http://akkartik.name/post/silfen-paths

Many thanks again to https://compudanzas.net for play-testing it and making it 10x more hospitable a road to travel.

permalink

Dress rehearsal for Advent of Code using Teliva

Watch me (slowly and laboriously) work through a problem from last year with Teliva

https://archive.org/details/akkartik-teliva-2021-11-30 (video; 15 minutes)

permalink

A guided tour of Mu on x86 computers

Oh, is it Advent time already?! I've been remiss. If you're looking for something slightly different (easier, more collaborative) this year, I have this guided tour of Mu in 16 gradually-escalating tasks for your consideration.

Many thanks to https://compudanzas.net for play-testing all the tasks and making many suggestions for improving it. Send compliments their way, blame me if you find anything off.

permalink

Teliva now has network access. Including https. And support for streaming APIs. All of luasocket and luasec libraries are supported.

(Obviously none of this is original development. I'm just putting together libraries created by my betters.)

Try it out:

git clone https://github.com/akkartik/teliva
cd teliva
make linux
src/teliva chesstv.tlv

Known issues:

• Code browser is broken for this app. It's likely the callback.
• Reading from network blocks keypresses.

Main project page: https://github.com/akkartik/teliva

permalink

I've been doing a lot of "differential debugging" on the Lua codebase lately. There's something going off the rails in a part of Teliva that I don't understand yet. I try to make my change in a temporary copy of the unmodified Lua sources and step through to see, what is the control flow supposed to look like? Then I compare with what's happening in Teliva. Where does it go off the rails? Super useful to have working software that is so easy to compile.

---

I've been programming in C++ for a long time, and just ran into a very surprising situation in C.

$ cat x.c
inline int foo(void) {
  return 42;
}

int main(void) {
  return foo();
}

$ gcc -c x.c
$ gcc x.o
undefined reference to 'foo'

$ gcc -O1 -c x.c
$ gcc x.o
# no error

If you compile without optimizations, the `inline` keyword does nothing -- but the function is still excluded from the object file.

permalink

Just discovered luapower via a random comment on reddit. Whoa.

https://luapower.com/philosophy

<3

One of the hidden gems in luapower is this little bash script called multigit. It.. oh heck, I'll just let you read about it and have your mind blown: https://github.com/capr/mgit

Relevant excerpt:

"NO [SUB-]DIRECTORIES

This may be a hard sell but I stand by it. [Sub-]directories are evil. Not so much because of semantics, but because of the tools we use suck at working with them. No global overview; instead you have to navigate them."

permalink

App runtimes should support modifying apps.

Here's a 2-minute video on how that might look.

https://archive.org/details/akkartik-2021-11-14

permalink

Minor epiphany about Lua

a = {11, 12, 13, key=14, 15}

permalink

You knew this was coming. Conway's Game of Life in text mode using Unicode Braille glyphs.

git clone https://github.com/akkartik/teliva
cd teliva
make linux
src/teliva life.teliva

Sources: https://github.com/akkartik/teliva/blob/main/life.teliva

permalink

New project

https://github.com/akkartik/teliva

"An extremely naïve, brutalist attempt at packaging up simple Lua (5.1) apps with all the stuff needed to edit and build them."

---

Fun with the kids on a Saturday morning messing around with daddy's new program.

We gave each ring its own color, and we have it set up to move the towers randomly around after every move. Supremely silly.

permalink