Add dev env setup

.gitignore

@@ -2,4 +2,5 @@ old/
 out/
 node_modules/
 *.iso
-*.img
+*.img
+.clangd

README.md

@@ -36,6 +36,12 @@ st run build
 
 The built ISO can be found in `out/` directory.
 
+## How to setup development environment?
+
+```bash
+./src/scripts/setup_dev.sh
+```
+
 ## If you are an employer looking at this...
 
 I would appreciate if you messaged me and gave me some well-paid job. Also...

src/scripts/dev-setup/default.clangd

@@ -0,0 +1,6 @@
+CompileFlags:
+  CompilationDatabase: .
+  Add:
+    - "-I%%workspaceFolder%%/src/core/compat"
+    - "-I%%workspaceFolder%%/src/lib/quickjs"
+    - "-I%%workspaceFolder%%/out/system"

src/scripts/setup_dev.sh

@@ -0,0 +1 @@
+cp ./src/scripts/dev-setup/default.clangd .clangd && sed -i.bak "s|%%workspaceFolder%%|$(pwd)|g" .clangd && rm .clangd.bak