feat: allow configuration via env vars

Cargo.toml

@@ -38,7 +38,7 @@ tokio = { version = "1.36.0", features = ["full"] }
 tokio-util = "0.7.8"
 ratatui = { version = "0.28.0", features = ["all-widgets"] }
 urlencoding = "2.1.2"
-clap = { version = "4.5.20", features = ["derive", "cargo"] }
+clap = { version = "4.5.20", features = ["derive", "cargo", "env"] }
 clap_complete = "4.5.33"
 itertools = "0.13.0"
 ctrlc = "3.4.5"

src/main.rs

@@ -71,10 +71,16 @@ struct Cli {
     long,
     global = true,
     value_parser,
+    env = "MANAGARR_CONFIG_FILE",
     help = "The Managarr configuration file to use"
   )]
   config: Option<PathBuf>,
-  #[arg(long, global = true, help = "Disable the terminal size checks")]
+  #[arg(
+    long,
+    global = true,
+    env = "MANAGARR_DISABLE_TERMINAL_SIZE_CHECKS",
+    help = "Disable the terminal size checks"
+  )]
   disable_terminal_size_checks: bool,
 }