diff --git a/stow/.config/nvim/lazy-lock.json b/stow/.config/nvim/lazy-lock.json
index 9de9ef8..63ea827 100644
--- a/stow/.config/nvim/lazy-lock.json
+++ b/stow/.config/nvim/lazy-lock.json
@@ -9,6 +9,7 @@
   "fidget.nvim": { "branch": "main", "commit": "e2a175c2abe2d4f65357da1c98c59a5cfb2b543f" },
   "fzf-lua": { "branch": "main", "commit": "ce1e24f2a48089b65deefcb0a71a9856839002b5" },
   "gitsigns.nvim": { "branch": "main", "commit": "4daf7022f1481edf1e8fb9947df13bb07c18e89a" },
+  "headlines.nvim": { "branch": "master", "commit": "bf17c96a836ea27c0a7a2650ba385a7783ed322e" },
   "lazy-lsp.nvim": { "branch": "master", "commit": "8cfb2329a4cdc8e1eefe47dc18fb8e8c6dbdf183" },
   "lazy.nvim": { "branch": "main", "commit": "077102c5bfc578693f12377846d427f49bc50076" },
   "lualine.nvim": { "branch": "master", "commit": "2a5bae925481f999263d6f5ed8361baef8df4f83" },
diff --git a/stow/.config/nvim/lua/nico/init.lua b/stow/.config/nvim/lua/nico/init.lua
index d849b36..84d8788 100644
--- a/stow/.config/nvim/lua/nico/init.lua
+++ b/stow/.config/nvim/lua/nico/init.lua
@@ -1,4 +1,3 @@
 require("nico.opts")
 require("nico.bind")
-require("nico.txt.init")
 require("nico.lazy_init")
diff --git a/stow/.config/nvim/lua/nico/lazy/headlines.lua b/stow/.config/nvim/lua/nico/lazy/headlines.lua
new file mode 100644
index 0000000..9a30354
--- /dev/null
+++ b/stow/.config/nvim/lua/nico/lazy/headlines.lua
@@ -0,0 +1,5 @@
+return {
+  "lukas-reineke/headlines.nvim",
+  dependencies = "nvim-treesitter/nvim-treesitter",
+  config = true
+}
diff --git a/stow/.config/tmux/tmux.conf b/stow/.config/tmux/tmux.conf
index b7ca851..ae3e57c 100644
--- a/stow/.config/tmux/tmux.conf
+++ b/stow/.config/tmux/tmux.conf
@@ -21,6 +21,11 @@ set -g history-limit 100000
 set -g base-index 1
 setw -g pane-base-index 1
 
+# fix undercurls: https://github.com/folke/tokyonight.nvim#fix-undercurls-in-tmux
+set -g default-terminal "${TERM}"
+set -as terminal-overrides ',*:Smulx=\E[4::%p1%dm'
+set -as terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m'
+
 # plugins
 # got from: https://github.com/tmux-plugins/tpm/blob/master/docs/automatic_tpm_installation.md, changed to a more sensible install dir
 if "test ! -d ~/.local/share/tmux/plugins/tpm" \