docs: add Ubuntu ESP-IDF setup and build flow

Signed-off-by: Asklv <boironic@gmail.com>

README.md

@@ -45,13 +45,17 @@ You send a message on Telegram. The ESP32-S3 picks it up over WiFi, feeds it int
 ### Install
 
 ```bash
-# You need ESP-IDF v5.5+ installed first:
-# https://docs.espressif.com/projects/esp-idf/en/v5.5.2/esp32s3/get-started/
-
 git clone https://github.com/memovai/mimiclaw.git
 cd mimiclaw
 
-idf.py set-target esp32s3
+# Ubuntu quick setup (installs ESP-IDF v5.5.2 + toolchain for esp32s3)
+./scripts/setup_idf_ubuntu.sh
+
+# Build with the configured ESP-IDF
+./scripts/build_ubuntu.sh
+
+# Or use upstream manual setup:
+# https://docs.espressif.com/projects/esp-idf/en/v5.5.2/esp32s3/get-started/
 ```
 
 ### Configure