function kak-session
    function _kak_connect_or_create
        set -l session_name $argv[1]
        set argv $argv[2..]
        set -l socket_paths \
            "$XDG_RUNTIME_DIR/kakoune/$session_name" \
            "{TMPDIR}/kakoune-$USER/$session_name"

    end
    # we treat the first file as the target
    set -l targ $argv[1]
    set -l root ""
    set -l gitdir (env -C (path dirname $targ) git rev-parse --show-toplevel)
    set session_name (string replace -r '[^a-zA-A0-9_-]' '_' (path basename $gitdir))

    # handle file:line syntax, TODO later

    _kak_connect_or_create $session_name $argv
end