Programmer Refreshment

https://www.reddit.com/r/dailyprogrammer/ Regular programming challenges

http://ideone.com/ Online compiler for >60 programming languages

(unrelated: https://speckyboy.com/free-responsive-html5-web-templates/)

Wireshark Dissector with LUA

http://torsten-traenkner.de/linux/development/wireshark.php
https://delog.wordpress.com/2010/09/27/create-a-wireshark-dissector-in-lua/
https://wiki.wireshark.org/Lua/Examples?action=AttachFile&do=get&target=fpm.lua
https://ask.wireshark.org/questions/45230/wireshark-lua-tcp-dissector

https://www.wireshark.org/docs/wsdg_html_chunked/lua_module_Proto.html
https://wiki.wireshark.org/LuaAPI/TreeItem

Emulate C# Tail Call Optimization with Trampolining

http://blog.functionalfun.net/2008/04/bouncing-on-your-tail.html

https://www.thomaslevesque.com/2011/09/02/tail-recursion-in-c/