tangling files with org-mode

I've been inspecting this repo https://github.com/kinnala/nixpkgs, and it was the first time I looked at the org tangling. Quite simple to do so:

Mostly using ":mkdirp yes :tangle path", is like doing a "cat block >>path". And you use (org-babel-tangle) as the exporter

#+begin_src elisp :mkdirp yes :tangle ~/.emacs
(org-babel-tangle)
#+end_src

export all variables in bash

If you have a prefix, the coolest way is like the following:

export ${!KONG_*}

If you want everything:

eval $(printenv | awk -F= '{ print "export " $1 }')

so JIT, WOW

This is so amazing I don't want to lose it:


A Smalltalk-80 VM written in LuaJIT, that boots the images from the eighties:
https://github.com/rochus-keller/Smalltalk#a-smalltalk-80-interpreted-virtual-machine-on-luajit

Approachable tutorial on JITs. The second part talks about metatracing.
https://news.ycombinator.com/item?id=23740655

I recently discovered this guy and he's awesome. Haven't particularly examined this repo, but please, also check out his other stuff.
https://github.com/spencertipping/jit-tutorial