Remove main file and add direnv configuration

src/lib.rs

@@ -0,0 +1,30 @@
+// src/lib.rs
+//! Console logging utilities for Rust applications.
+
+use log::{Level, LevelFilter, Metadata, Record, SetLoggerError};
+
+/// A minimal console logger implementation.
+pub struct ConsoleLogger;
+
+static LOGGER: ConsoleLogger = ConsoleLogger;
+
+impl log::Log for ConsoleLogger {
+    fn enabled(&self, metadata: &Metadata<'_>) -> bool {
+        metadata.level() <= Level::Info
+    }
+
+    fn log(&self, record: &Record<'_>) {
+        if self.enabled(record.metadata()) {
+            println!("[{}] {}", record.level(), record.args());
+        }
+    }
+
+    fn flush(&self) {}
+}
+
+/// Initializes the console logger with `Info` as the maximum log level.
+pub fn init() -> Result<(), SetLoggerError> {
+    log::set_logger(&LOGGER)?;
+    log::set_max_level(LevelFilter::Info);
+    Ok(())
+}

src/main.rs

@@ -1,3 +0,0 @@
-fn main() {
-    println!("Hello, world!");
-}