update

src/linux/Offline_centric_apps.md

@@ -70,6 +70,9 @@ If you just want to check if something in the folder changed:
 ls -alR --full-time /folder/of/stuff | sha1sum
 ```
 
+But how can we trust the compromised linux operating system software that generates the checksum? We don't have to. For example, Ubuntu software provides a checksum for publicly audited software. One can install the Ubuntu on a pendrive and verify the checksum of the folder containing the Linux OS installed on the computer's hard disk.
+
+
 ## Wasm interface types
 
 [Wit Bindgen](https://github.com/bytecodealliance/wit-bindgen) uses Guest language bindings generator for WIT and the Component Model. With it different modules (or apps) can talk with each other. Its also used for the [Tauri Inter-process communication (IPC) bridge](https://github.com/tauri-apps/tauri-bindgen)