From 33386953d955d9cd541af91fa2209c463f581e7e Mon Sep 17 00:00:00 2001
From: Uri Tauber <142022451+Uri-Tauber@users.noreply.github.com>
Date: Mon, 27 Apr 2026 16:45:38 +0300
Subject: [PATCH] feat: enable pio build cache (#1769)

## Summary

* **What is the goal of this PR?**
Enables the PlatformIO build cache to speed up compilation.

## Additional Context

Significant improvement when switching branches, as unchanged files
won't need re-compilation.
See
[Docs](https://docs.platformio.org/en/latest/projectconf/sections/platformio/options/directory/build_cache_dir.html).

Note: May need to manually delete .cache folder if updating toolchain or
framework.

---

### AI Usage

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please be transparent about their usage as it
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Did you use AI tools to help write this code? _**< NO >**_
---
 platformio.ini | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platformio.ini b/platformio.ini
index 625eaae2a..189ff8d9d 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -1,5 +1,6 @@
 [platformio]
 default_envs = default
+build_cache_dir = .cache
 extra_configs = platformio.local.ini
 
 [crosspoint]