Trying using absolute paths now for binaries executions.

src/nyan_system.rs

@@ -101,7 +101,9 @@ impl std::error::Error for ExecCommandError {}
 
 /// exec given command with arguments, capturing stderr in case or failure
 pub fn exec_command(cmd: &str, args: &Vec<&str>) -> Result<(), ExecCommandError> {
-    let out = Command::new(cmd).args(args).output()?;
+    // For testing shake lets assume all binaries is in /usr/bin
+    let ex_cmd = format!("/usr/bin/{}", cmd);
+    let out = Command::new(ex_cmd).args(args).output()?;
     if out.status.success() {
         Ok(())
     } else {
@@ -236,13 +238,16 @@ pub fn set_env_vars_unsafe() -> () {
     let custom_lib = "/usr/lib";
 
     // 2. Retrieve existing paths to append/prepend (optional but recommended)
-    let existing_path = env::var("PATH").unwrap_or_else(|_| String::new());
-    let existing_ld_path = env::var("LD_LIBRARY_PATH").unwrap_or_else(|_| String::new());
-
     // 3. Construct new path strings
-    // Prepend custom paths so they take precedence
-    let new_path = format!("{}:{}", custom_bin, existing_path);
-    let new_ld_path = format!("{}:{}", custom_lib, existing_ld_path);
+    let new_path = match env::var("PATH") {
+        Err(_) => custom_bin.to_string(),
+        Ok(v)  => format!("{}:{}", v, custom_bin)
+    };
+
+    let new_ld_path = match env::var("LD_LIBRARY_PATH") {
+        Err(_) => custom_lib.to_string(),
+        Ok(v)  => format!("{}:{}", v, custom_lib)
+    };
 
     // 4. Set environment variables (UNSAFE in Rust 2024+)
     // MUST be done before spawning any threads or async runtimes