Fuse

1 VersionUtility

Multi-rate re-clocker aligning several independently-rated input legs onto one common timeline with passthrough typing: output port i carries the exact type of leg i, so a a leg stays a. Faster legs pass 1:1, slower legs are held, one snapshot emitted per tick.

How it fits

Typical backends

Pair every live frame with the most recent result of a slow heavy model so a downstream consumer always sees both, each on its own typed port, at the fast frame rate.

Re-present a slow stream at an ambient tick rate by holding its last value, a repeat-latch that upsamples one leg without resampling its content while the pacing stream passes through on its own port.

Caveats

I/O contractOutput port i carries the exact type of input leg i — no record, no list-wrapping — and exactly one message is emitted on every output port per tick, so the number of output ports always equals the number of connected input legs.
State lifetimeEach leg keeps its last observed value across ticks; once a leg stops producing, that final value is held and re-presented forever, and a container restart is the only reset.
LimitationBefore every leg has produced its first value the worker emits nothing, so a pacing stream that ticks ahead of a slow producer incurs startup latency rather than emitting a snapshot with a hole.
OrderingSnapshots follow the pacing order; a held leg that bursts several values between two ticks collapses to a single held value at the next tick, the most recent one.

Versions

0db7771fdefaultlatest
Automated release
6/24/2026