From 532a5d6c74392f6d5381543f44b1d32e7848e901 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E2=9C=BF=20corey=20=28they/them=29?= <c@rey.foo>
Date: Mon, 9 Mar 2026 18:16:24 -0700
Subject: [PATCH] feat(home): auto-switch starship to minimal prompt in narrow
 terminals

Add precmd hook that checks $COLUMNS and swaps to minimal starship
config when terminal width is under 80 columns. Responds dynamically
to terminal resize.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 home/programs/zsh.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/home/programs/zsh.nix b/home/programs/zsh.nix
index 6adc5a6..c28c548 100644
--- a/home/programs/zsh.nix
+++ b/home/programs/zsh.nix
@@ -42,6 +42,15 @@
         unset STARSHIP_CONFIG
       }
 
+      _prompt_auto_width () {
+        if [[ $COLUMNS -lt 100 ]]; then
+          export STARSHIP_CONFIG=''${XDG_CONFIG_HOME:-$HOME/.config}/starship-minimal.toml
+        else
+          unset STARSHIP_CONFIG
+        fi
+      }
+      precmd_functions+=(_prompt_auto_width)
+
       if command -v nix-your-shell > /dev/null; then
         nix-your-shell zsh | source /dev/stdin
       fi