restructure folder organisation

legacy/modules/development.nix

@@ -0,0 +1,44 @@
+{ config, pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+    # rust
+    unstable.cargo
+    unstable.clippy # lint
+    cargo-flamegraph
+    cargo-outdated
+    rustfmt
+    unstable.rustc
+    # general
+    clang
+    cloc
+    cmake
+    dfeet
+    direnv
+    entr
+    git
+    gnumake
+    go
+    hugo
+    meson
+    ninja
+    (python3.withPackages (ps: with ps; [
+      jupyter # notebooks
+      matplotlib
+      numpy
+      pandas
+      pillow
+      plotly
+      scikitlearn
+      scipy
+      tqdm # progressbar in pandas
+      wheel # python development
+    ]))
+    ripgrep
+    shellcheck
+    topgrade
+    valgrind
+    vimPlugins.YouCompleteMe
+    ycmd
+    woeusb-ng
+  ];
+}