feat: track Decman configuration

system-config/config/user/common/fish/config.fish

@@ -0,0 +1,44 @@
+starship init fish | source
+set fish_greeting ""
+
+# Prefer Neovim for both explicit and editor-variable invocations.
+alias vim nvim
+set -gx EDITOR nvim
+set -gx VISUAL nvim
+
+# pyenv setup
+while set pyenv_index (contains -i -- "/home/alex/.pyenv/shims" $PATH)
+    set -eg PATH[$pyenv_index]
+end
+set -e pyenv_index
+set -gx PATH '/home/alex/.pyenv/shims' $PATH
+set -gx PYENV_SHELL fish
+command pyenv rehash 2>/dev/null
+function pyenv
+    set command $argv[1]
+    set -e argv[1]
+
+    switch "$command"
+        case rehash shell
+            source (pyenv "sh-$command" $argv|psub)
+        case "*"
+            command pyenv "$command" $argv
+    end
+end
+
+# bun
+set --export BUN_INSTALL "$HOME/.bun"
+set --export PATH $BUN_INSTALL/bin $PATH
+
+# opencode
+fish_add_path /home/alex/.opencode/bin
+
+# Yazi wrapper that keeps the shell in its selected directory.
+function y
+    set tmp (mktemp -t "yazi-cwd.XXXXXX")
+    command yazi $argv --cwd-file="$tmp"
+    if read -z cwd <"$tmp"; and [ "$cwd" != "$PWD" ]; and test -d "$cwd"
+        builtin cd -- "$cwd"
+    end
+    command rm -f -- "$tmp"
+end