diff --git a/intake-rss/intake_rss/__init__.py b/intake-rss/intake_rss/__init__.py
index 35b518a..5694f08 100644
--- a/intake-rss/intake_rss/__init__.py
+++ b/intake-rss/intake_rss/__init__.py
@@ -1,6 +1,53 @@
+import hashlib
+import json
+import os
+import sys
+import time
+
+import feedparser
+
+
+def stderr(*args):
+    print(*args, file=sys.stderr)
+
+
 def main():
-    print("Hello, world!")
+    feed_url = os.environ.get("FEED_URL")
+    if not feed_url:
+        stderr("No FEED_URL defined")
+        return 1
+
+    feed = feedparser.parse(feed_url)
+    if feed.bozo:
+        stderr("Failed to parse feed", feed_url)
+        return 1
+
+    feed_title = feed.feed.get("title") or os.environ.get("FEED_TITLE")
+
+    for entry in feed.entries:
+        item = {}
+
+        entry_link = entry.get("link")
+        id_basis = entry_link or entry.get("id") or str(entry)
+        item["id"] = hashlib.md5(id_basis.encode("utf8")).hexdigest()
+
+        entry_title = entry.get("title", "(No title)")
+        if feed_title:
+            item["title"] = f"{feed_title}: {entry_title}"
+        else:
+            item["title"] = entry_title
+
+        if entry_pubparsed := entry.get("published_parsed"):
+            item["time"] = int(time.mktime(entry_pubparsed))
+
+        if entry_desc := entry.get("summary"):
+            item["body"] = entry_desc
+
+        if entry_link:
+            item["link"] = entry_link
+
+        print(json.dumps(item))
+
 
 if __name__ == "__main__":
-    main()
-
+    sys.exit(main())