StateT still beats IORef for most pipelinesA practitioner's case for keeping pure state monads at the heart of business logic, even when the temptation of mutable references becomes overwhelming.
servant-2.0: a quieter, smaller, faster API toolkit NEWThe long-anticipated rewrite drops the heavy generics machinery in favour of a tighter type-level core. Early benchmarks suggest 30% faster compile times.
Build the financial primitives layer in production Haskell. Strong preference for candidates with experience in persistent and effect systems.
Free monads, written for working engineersCuts past the category-theory framing and lands directly on the practical question: when does a free encoding repay the cognitive cost it imposes?
The annual gathering returns to ETH Zürich in June. Talks on industrial Haskell, type-level programming, and compiler internals are particularly welcome.
effectfulAfter years of fragmentation between mtl, polysemy, and fused-effects, production teams are converging on a single, pragmatic answer.
cassava-streaming: constant-memory CSV processingA small, focused library for those moments when you need to process a fifty-gigabyte CSV without your laptop developing a fever.
Twelve papers, four books, and an honest accounting of which classics have aged into required reading and which have aged into curiosities.
A candid retrospective on what worked, what didn't, and why the team is unlikely to ever go back to the previous Go-based service.
A talk and discussion evening at the usual venue. RSVP is light-touch, but a head-count helps the host arrange enough chairs.