diff --git a/.copilotignore b/.copilotignore
index c58a2ca..32b6ede 100644
--- a/.copilotignore
+++ b/.copilotignore
@@ -58,6 +58,8 @@
 **/*.pyc
 **/*.pyo
 **/*.class
+**/*.jar
+**/*.dex
 # Data
 **/*.apkg
 **/*.bin
@@ -83,10 +85,20 @@ node_modules/
 __pycache__/
 **/__pycache__/
 
-# Build outputs
+# Build outputs (symlinked to ../testsAndMisc_builds/)
 pomodoro_app/build/
+horatio/horatio_app/build/
 sonic_pi/build/
 CPP/mini_browser/build/
+**/build/
+
+# Dart / Flutter caches (symlinked to ../testsAndMisc_builds/)
+**/.dart_tool/
+**/ephemeral/
+
+# Packaging build artifacts
+**/packaging/**/pkg/
+**/packaging/**/src/
 
 # Generated / preview images
 **/generated_images_*/
diff --git a/.gitignore b/.gitignore
index 68a8c1a..80e2624 100644
--- a/.gitignore
+++ b/.gitignore
@@ -392,3 +392,13 @@ cinema_plan_*.txt
 
 # Binary images moved to external storage (testsAndMisc_binaries/)
 python_pkg/praca_magisterska_video/images/
+
+# Build output symlinks (point to ../testsAndMisc_builds/)
+# Patterns without trailing / to match symlinks, not just directories
+pomodoro_app/build
+horatio/horatio_app/build
+sonic_pi/build
+CPP/mini_browser/build
+pomodoro_app/.dart_tool
+horatio/horatio_app/.dart_tool
+horatio/horatio_core/.dart_tool
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 06b43e8..ebae0ad 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -23,8 +23,10 @@
     ".mypy_cache": true,
     "C/misc/randomJPG": true,
     "pomodoro_app/build": true,
+    "horatio/horatio_app/build": true,
     "sonic_pi/build": true,
     "CPP/mini_browser/build": true,
+    "**/.dart_tool": true,
     "python_pkg/anki_decks/**/preview_images": true,
     "python_pkg/download_cats/http_cat_cache": true,
     "python_pkg/articles/uploads": true,
@@ -45,6 +47,8 @@
     "**/*.bin": true,
     "**/*.db": true,
     "**/*.sqlite": true,
+    "**/.dart_tool": true,
+    "**/ephemeral": true,
     "**/node_modules": true,
     "python_pkg/anki_decks": true,
     "python_pkg/praca_magisterska_video": true,