#dynamodb

4 posts

Just Enough Agreement: read your writes, and why not to over-buy consistency
Projects 3 min

Just Enough Agreement: read your writes, and why not to over-buy consistency

Just Enough Agreement is Episode 3 of Learning Maps, a Napkin Films series that turns system design into story. Strong consistency is the expensive default, a cathedral when a sticky note would do. The skill is buying the cheapest guarantee the story actually needs: read your writes, monotonic reads, session consistency. Hand drawn on a napkin, narrated by two cloned voices, scored with a 14 Hz focus layer. CC BY 4.0.

The Dial: quorum, R plus W greater than N, and tuning consistency by counting
Projects 3 min

The Dial: quorum, R plus W greater than N, and tuning consistency by counting

The Dial is Episode 2 of Learning Maps, a Napkin Films series that turns system design into story. Consistency is not on or off. It is a dial you set by counting: with N copies, when your reads plus your writes are greater than N, a read is forced to overlap a write and see the latest truth. Hand drawn on a napkin, narrated by two cloned voices, scored with a 14 Hz focus layer. CC BY 4.0.

The Forced Choice: CAP, PACELC, and the trade every database already made
Projects 4 min

The Forced Choice: CAP, PACELC, and the trade every database already made

The Forced Choice is Episode 1 of Learning Maps, a new Napkin Films series that turns system design into story. A storm takes down the phone line between two librarians, and what happens next is the deepest fact in distributed systems: the CAP theorem, its honest twin PACELC, and the trade every database has already made. Hand drawn on a napkin, narrated by two cloned voices, scored with a 14 Hz focus layer. CC BY 4.0.

BUNNY IN THE CLOUD: Plan 9 finds millions of bunnies running everything in A minor at 148 BPM
Projects 15 min

BUNNY IN THE CLOUD: Plan 9 finds millions of bunnies running everything in A minor at 148 BPM

A 4:01 rave/house/techno music video. Plan 9 the bunny finds his way into the AWS cloud and discovers millions of bunnies running everything. ChipForge 148 BPM in A minor with two thematic hooks (Sandstorm-shape arp + anthem chord stabs) plus an 8-bar SIGNATURE theme that arpeggiates at 16ths during the climax. Twelve sections matching the music's chord cycle. Cricket-chirp Stranger Things intro. Daniel-as-bunny-oracle ElevenLabs voice in Snoop-style sing-song chant. 200 dancing Miyazaki sprites at the climax. Sayonara, usagi-san sign-off. Six iteration passes from baseline to ship.