Added fish config

dot_config/fish/conf.d/00_env.fish

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+set -gx EDITOR nvim
+set -gx GIT_EDITOR nvim
+set -gx PIPENV_VERBOSITY -1
+set -gx MAKEFLAGS "-j"(math (nproc) + 1)
+set -gx JULIA_NUM_THREADS (nproc)
+set -gx YAOURT_COLORS "nb=1:pkg=1:ver=1;32:lver=1;45:installed=1;42:grp=1;34:od=1;41;5:votes=1;44:dsc=0:other=1;35"
+set -gx XDG_CONFIG_HOME "$HOME/.config"
+set -gx PASSWORD_STORE_DIR "$HOME/.cache/password-store"
+set -gx GLAMOUR_STYLE "$XDG_CONFIG_HOME/glamour/tokyo_night.json"
+
+if test (uname) != "Windows_NT"
+    set -gx GPG_TTY (tty)
+end
+
+set -gx LESS_TERMCAP_mb (printf "\e[01;31m")
+set -gx LESS_TERMCAP_md (printf "\e[01;31m")
+set -gx LESS_TERMCAP_me (printf "\e[0m")
+set -gx LESS_TERMCAP_so (printf "\e[01;44;36m")
+set -gx LESS_TERMCAP_se (printf "\e[0m")
+set -gx LESS_TERMCAP_us (printf "\e[00;36m")
+set -gx LESS_TERMCAP_ue (printf "\e[0m")
+
+fish_add_path ~/.local/bin
+fish_add_path ~/.cargo/bin
+fish_add_path ~/.poetry/bin
+fish_add_path ~/.ghcup/bin
+fish_add_path ~/.nix-profile/bin
+fish_add_path /nix/var/nix/profiles/default/bin
+fish_add_path /opt/miniconda3/bin

dot_config/fish/conf.d/aliases.fish

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+if status is-interactive
+    # Modern Unix Replacements
+    alias cat bat
+    alias du dust
+    alias df duf
+    alias grep rg
+    alias cp xcp
+    alias find fd
+    alias top btm
+    alias htop btm
+    alias burn rm
+    alias rm rip
+    # Convenience aliases
+    alias free "free -m"
+    alias npkg "nano -w PKGBUILD"
+    alias q exit
+    alias :q exit
+    alias c clear
+    alias h history
+    alias lsa "ls -a"
+    alias lsl "ls -l"
+    alias lsla "ls -la"
+    # Python / Poetry
+    alias pip-upgrade "python -m pip install --upgrade pip"
+    alias pypy pypy3
+    alias poem "poetry run python"
+    alias bashpoem "poetry run bash"
+    alias nupoem "poetry run nu"
+    alias fishpoem "poetry run fish"
+    alias jupyterpoem "poetry run jupyter"
+    # Misc
+    alias vim nvim
+    alias vi nvim
+    alias nix-fish "nix-shell --command fish"
+
+    abbr --add .. cd ..
+    abbr --add ... cd ../..
+    abbr --add .... cd ../../..
+    abbr --add ..... cd ../../../..
+end

dot_config/fish/conf.d/zoxide.fish

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+if type -q zoxide
+    zoxide init fish | source
+end

dot_config/fish/config.fish

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+set -U fish_greeting
+
+if status is-interactive
+    # --- Vi Mode Settings ---
+    fish_vi_key_bindings
+    set fish_cursor_default block blink
+    set fish_cursor_insert line blink
+    set fish_cursor_replace_one underscore blink
+    set fish_cursor_visual block
+
+    # --- Plugin Initializations ---
+    if type -q starship
+        starship init fish | source
+    end
+
+    if type -q atuin
+        atuin init fish | source
+    end
+
+    if type -q direnv
+        direnv hook fish | source
+    end
+
+    if type -q rbw
+        rbw gen-completions fish | source
+    end
+
+    # --- Hooks ---
+
+    # Auto-run onefetch when entering a git repo
+    # This function registers an event handler on the variable PWD
+    function __run_onefetch_on_dir_change --on-variable PWD
+        if test -d .git
+            onefetch --nerd-fonts
+        end
+    end
+    __run_onefetch_on_dir_change
+
+    # Startup fetch
+    sysfetch
+end

dot_config/fish/functions/sysfetch.fish

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+function sysfetch
+    if type -q fastfetch
+        if begin
+                string match -q "*kitty*" "$TERM"
+                or string match -q "*ghostty*" "$TERM"
+            end
+            and test -f "$HOME/.config/fastfetch/kitty.jsonc"
+
+            fastfetch --config "$HOME/.config/fastfetch/kitty.jsonc"
+        else
+            fastfetch
+        end
+    else if type -q neofetch
+        echo "Why are you still using neofetch? It's deprecated!"
+        neofetch
+    else if type -q screenfetch
+        screenfetch
+    else if type -q archey
+        archey
+    else if type -q lsb_release
+        lsb_release -a
+    else if type -q uname
+        uname
+    end
+end