Johs's approximate programming language knowledge
| Programming language | (10^n)s lines of code written (e.g. 4 => between 10e4 and 10e5 lines of code) | 
|---|
| protobuf | 2 | 
| pgSQL | 2 | 
| make | 3 | 
| automake | 2 | 
| autoconf | 2 | 
| Zig | 2 | 
| XSD | 2 | 
| Vue.js | 2 | 
| VimL | 3 | 
| Verilog | 2 | 
| VHDL | 1 | 
| TikZ | 1 | 
| Swift | 2 | 
| Sed | 2 | 
| Salt State (YAML+Jinja) | 3 | 
| SQL | 3 | 
| Rust | 3 | 
| Ruby | 4 | 
| RPM spec | 3 | 
| R | 1 | 
| Python | 3 | 
| Perl | 1 | 
| PKGFILE | 2 | 
| PHP | 4 | 
| OpenSCAD (3D-models) | 3 | 
| OpenAPI (YAML) | 2 | 
| Objectiv-C | 2 | 
| Nim | 1 | 
| Mathematica | 1 | 
| Markdown (mostly text) | 4 | 
| MapReduce (Hadoop) | 2 | 
| MATLAB | 3 | 
| Lua | 1 | 
| Lisp | 2 | 
| LaTeX (mostly text) | 4 | 
| Kubernetes (YAML) | 3 | 
| Julia | 1 | 
| JavaScript | 3 | 
| Java | 3 | 
| JSON schema | 2 | 
| Hylo | 2 | 
| Haskell | 2 | 
| HTML | 3 | 
| Go(lang) | 4 | 
| Gnuplot | 2 | 
| Erlang | 1 | 
| Elixir | 1 | 
| Dockerfile | 3 | 
| Dart | 1 | 
| D | 2 | 
| Crystal | 1 | 
| Cpp2 | 1 | 
| Carbon | 1 | 
| CUDA | 3 | 
| CSS | 3 | 
| COBOL | 1 | 
| CMake | 3 | 
| C++ | 5 | 
| C# | 3 | 
| C | 4 | 
| Batch (DOS) | 2 | 
| BNF | 1 | 
| BASH | 3 | 
| Assembly X86 | 2 | 
| Assembly MIPS | 1 | 
| AsciiDoc (mostly text) | 4 | 
| Ant | 1 | 
| Ansible Playbook (YAML) | 2 | 
| Actionscript | 1 | 
| AWK | 3 | 
| ASP.NET | 2 |