One of my favorite programming languages is Lua, a scripting language as old as Python and Ruby, with a much cleaner and regular syntax, the simplest C FFI that someone could find, and the impressive LuaJIT speed. So I use it as much as I can.
But Lua has a much smaller community and is still developing some parts of its ecosystem, and so I could not find an easy and simple environment manager like rbenv or rvm for Ruby to keep LuaRocks packages away from conflicting with each other. So I did one! Luas is the simplest shell script I could make in a hurry to deploy an application today to one of my customers, check it out:
$ git clone github.com:limadm/luas $ cd luas $ sudo make install $ luas list Legend: available - installed * active Versions: lua-5.3.3 lua-5.2.4 lua-5.1.5 luajit-2.1.0-beta2 luajit-2.1.0-beta1 luajit-2.0.4 $ luas install luajit-2.1.0-beta2 . . . (lots of makefile output here) . . . $ luas use luajit-2.1.0-beta2 $ which luajit ~/.luas/luajit-2.1.0-beta2/bin/luajit $ luarocks install penlight $ luajit LuaJIT 2.1.0-beta2 -- Copyright (C) 2005-2016 Mike Pall. http://luajit.org/ JIT: ON SSE2 SSE3 SSE4.1 fold cse dce fwd dse narrow loop abc sink fuse > require 'pl' > = seq.reduce('+', seq.range(1,100)) 5050
Now I can have as many moons as I want! =]