Jim's Depository

A long-dormant mail domain becomes an unexpected test of internet memory, delivery retries, and harvested addresses—raising the question of whether these messages are spam, ghosts, or both.

Use MaxMind’s free GeoLite2 data without adding a C dependency: swift-mmdb delivers cross-platform IP geolocation in roughly 150 µs per lookup with a 9 MB database footprint.

Swift 6’s concurrency checks, Hummingbird 2’s rough edges, SQLite access with Lighter, and static-stdlib Debian packaging all get a field report from rebuilding a small production blog.