better structure

config/fish/prev.d/.gitignore

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+*
+!.gitignore
+!prompt.fish
+!theme.fish
+!alias.fish
+!env.fish

config/fish/prev.d/alias.fish

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+# fzf
+if type -q fzf
+    fzf --fish | source
+
+    if type -q wl-copy
+        function fzc
+            fzf $argv | string collect | wl-copy
+        end
+    end
+
+    if type -q bat
+        alias fz="fzf --preview 'bat --style=numbers --color=always {}'"
+    end
+end
+
+# cd
+if type -q zoxide
+    zoxide init fish | source
+    alias cd=z
+end
+
+# rm
+if type -q trash
+    alias rm="echo \"use 'trash' instead :)\"  && sh -c \"exit 42\" && echo why do you see this line :O"
+end
+
+# ls
+if type -q eza
+    alias ll="eza -lh --group-directories-first --icons=auto"
+    alias la="eza -lh --group-directories-first --icons=auto --all"
+    alias lt="eza --tree --level=2 --long --icons --git"
+else
+    alias ll="ls -lh --group-directories-first --color=auto"
+    alias la="ls -lah --group-directories-first --color=auto"
+end
+
+# directories
+alias ..='cd ..'
+alias ...='cd ../..'
+alias ....='cd ../../..'
+
+# grep
+alias grep="grep --color=auto"
+
+# nvim
+if type -q nvim
+    set -x -g EDITOR nvim
+    set -x -g VISUAL nvim
+end
+
+# others
+if type -q tty-clock
+    alias clock="tty-clock -c -C 4"
+end

config/fish/prev.d/env.fish

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+# PATH
+fish_add_path $HOME/.local/scripts
+fish_add_path $HOME/.local/bin
+fish_add_path $HOME/.cargo/bin
+fish_add_path $HOME/go/bin
+
+# man
+if type -q bat
+    set -x -g MANPAGER "sh -c 'col -bx | bat -l man -p'"
+    set -x -g MANROFFOPT -c
+end

config/fish/prev.d/prompt.fish

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+function fish_prompt -d "Write out the prompt"
+    # This shows up as USER@HOST /home/user/ >, with the directory colored
+    # $USER and $hostname are set by fish, so you can just use them
+    # instead of using `whoami` and `hostname`
+    printf '%s@%s %s%s%s > ' $USER $hostname \
+        (set_color $fish_color_cwd) (prompt_pwd) (set_color normal)
+end
+
+# oh-my-posh
+if test -f $HOME/.config/posh_theme.omp.json; and type -q oh-my-posh
+    oh-my-posh init fish --config $HOME/.config/posh_theme.omp.json | source
+end

config/fish/prev.d/theme.fish

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+set -l theme 'Catppuccin Mocha'
+
+if not set -q fish_current_theme; or not string match -q "$theme" "$fish_current_theme"
+    set -U fish_current_theme "$theme"
+    fish_config theme save "$theme"
+end