Update Ubuntu instructions

rexim · rexim · commit 0302889e5be1 · 2025-12-03T09:22:12.000+07:00
diff --git a/README.md b/README.md
@@ -6,7 +6,15 @@
 
 ## Build
 
-### POSIX
+### Ubuntu
+
+```console
+$ sudo apt-get install -qq libgl-dev libxcursor-dev libxrandr-dev libxi-dev
+$ make
+$ ./sowon
+```
+
+### MacOS
 
 ```console
 $ make
