banana language
 native
  portuguese
 fluent
  written english
 much
  spoken english
 medium
  braille
 little
  brazilian sign language, spanish
 very little
  german, japanese

markup language
 medium
  html, latex
 little
  wiki markup

system administration
 medium
  gnu/linux-libre (trisquel)
 little
  gnu/linux-libre (parabola)

web
 little
  apache, dns, ethereum swarm, i2p, ipfs, tor, zeronet
 very little
  freenet, torrent

programming language (+ database)
 developer
  urn (c, haskell, idris, racket)
 much
  scheme (racket)
 medium
  bash, c, c++, haskell, java, javascript (sm), minizinc, php, portugol, scheme (guile), sql
 little
  acl2, agda, algol60, ats, brainfuck, clojure, coffeescript, common lisp, coq, fortran, fsharp, idris, javascript (jsc, rhino; nodejs), joy, lua, ocaml, pascal, perl, perligata, ps, python, ruby, scheme (chicken), x86 assembly

bachelor of computer science - incomplete
engineering drawing
robotics
2d game