diff --git a/examples/images-in-downloads.json b/examples/images-in-downloads.json
new file mode 100644
index 0000000..81ece11
--- /dev/null
+++ b/examples/images-in-downloads.json
@@ -0,0 +1,13 @@
+[
+    {
+        "filter": {
+            "type": "all", "filters": [
+                {"type": "content_type", "mime": "image/png"}
+            ]
+        },
+        "location": "~/Downloads",
+        "actions": [
+            "trash"
+        ]
+    }
+]
diff --git a/src/main.rs b/src/main.rs
index 51eb8fc..48d4f0a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,41 +2,37 @@ use color_eyre::eyre::Result;
 use futures::prelude::*;
 use clap::Parser;
 
+use std::io::Read;
+
 mod filters;
 mod job;
 mod pattern;
 mod actions;
 
-const DATA: &str = r#"
-[
-    {
-        "filter": {
-            "type": "all", "filters": [
-                {"type": "content_type", "bytes": [137, 80, 78, 71]}
-            ]
-        },
-        "location": "~/Downloads",
-        "actions": [
-            {"move": "~/test"}
-        ]
-    }
-]"#;
-
 #[derive(Debug, Parser)]
 struct Args {
     spec: Option<std::path::PathBuf>,
     /// Run specified commands instead of printing them
-    #[arg(long, short)]
+    #[arg(long = "no-dry-run", short = '!')]
     execute: bool,
 }
 
+impl Args {
+    fn data(&self) -> std::io::Result<Box<dyn Read>> {
+        Ok(match self.spec {
+            Some(ref path) => Box::new(std::fs::File::open(path)?),
+            None => Box::new(std::io::stdin()),
+        })
+    }
+}
+
 #[tokio::main]
 async fn main() -> Result<()> {
     let args = Args::parse();
 
-    println!("{args:#?}");
+    let reader = args.data()?;
 
-    let jobs: Vec<job::Job> = serde_json::from_str(DATA).unwrap();
+    let jobs: Vec<job::Job> = serde_json::from_reader(reader)?;
 
     stream::iter(&jobs)
         .then(|job| job.actions())