Migrate to snowfall lib

shells/devsh/default.nix

@@ -0,0 +1,47 @@
+{ pkgs, ... }:
+pkgs.mkShell {
+  buildInputs = with pkgs; [
+    #LANG & COMPILER
+    gcc
+    (with llvmPackages; [ libcxxClang ])
+    gnumake
+    cmake
+    go
+    gotools
+    jdk
+    gradle
+    maven
+    kotlin
+    nodejs
+    yarn-berry
+    crystal
+    shards
+    python311Full
+    virtualenv
+    (with python311Packages; [ pip ])
+    pipenv
+    scala
+    sbt
+
+    #LIBS
+    openssl
+    pcre
+    pcre2
+    ncurses
+    patchelf
+    zlib
+
+    #DBG & TOOLS
+    gdbgui
+    valgrind
+    sox
+    docker-compose
+
+    #CUSTOM (custom...)
+  ];
+  shellHook = ''
+    export DEVSH="DEV"
+    export HTTP_PORT=8080
+    export HTTP_ADDR="0.0.0.0"
+  '';
+}