diff --git a/dotfiles/kakoune.nix b/dotfiles/kakoune.nix
index a61013e..06a3b3d 100644
--- a/dotfiles/kakoune.nix
+++ b/dotfiles/kakoune.nix
@@ -292,6 +292,9 @@ in {
         set-option buffer softtabstop 2
         set-option buffer tabstop 2
         set-option buffer indentwidth 2
+
+        map buffer normal <a-minus> ': outline-jump-ruby<ret>'
+        map buffer goto d '<a-i>w: outline-jump-ruby %val{selection}<ret>' -docstring 'Def (same file)'
       }
 
       hook global WinSetOption filetype=ts %{
diff --git a/pkgs/kak-tree-grepper/rc/kak-tree-grepper.kak b/pkgs/kak-tree-grepper/rc/kak-tree-grepper.kak
index 27b9e5d..69fa82a 100644
--- a/pkgs/kak-tree-grepper/rc/kak-tree-grepper.kak
+++ b/pkgs/kak-tree-grepper/rc/kak-tree-grepper.kak
@@ -25,3 +25,27 @@ define-command -override -docstring "jump somewhere in an Elm file's definition
         printf "evaluate-commands -client %s edit %s\n" "$CLIENT" "$EDIT_LOCATION" | indiekak -p "$SESSION"
     } -- %opt{tree_grepper_path} %opt{tree_grepper_fzf_path} %val{bufname} %arg{1} %val{client} %val{session}
 }
+
+define-command -override -docstring "jump somewhere in a Ruby file's definition outline" -params 0..1 outline-jump-ruby %{
+    tmux-terminal-horizontal sh -c %{
+        set -euo pipefail
+
+        # what tools do we have available?
+        TREE_GREPPER=${1:-tree-grepper}
+        FZF=${2:-fzf}
+
+        # what do we care about?
+        FILE=$3
+        FZF_QUERY=$4
+
+        # where do we return results?
+        CLIENT=$5
+        SESSION=$6
+
+        # do the magic!
+        QUERY="(module name: (_) @module) (class name: (_) @class) (method name: (_) @method) (singleton_method name: (_) @singleton-method) (assignment left: (_) @assignment) (operator_assignment left: (_) @assignment)"
+
+        EDIT_LOCATION="$("$TREE_GREPPER" --language ruby "$QUERY" "$FILE" | fzf --with-nth 4,5 --nth 2,1 --delimiter=: --query "$FZF_QUERY" --select-1 | cut -d : -f 1-3 | tr : ' ')"
+        printf "evaluate-commands -client %s edit %s\n" "$CLIENT" "$EDIT_LOCATION" | indiekak -p "$SESSION"
+    } -- %opt{tree_grepper_path} %opt{tree_grepper_fzf_path} %val{bufname} %arg{1} %val{client} %val{session}
+}