Stephen Way

Feedback loops should be instant, I think

[Stephen Way @stephenway]

First glimpse of Fjord Mobile.

Native Forgejo on iPhone.

Still early. More to share soon.

[Stephen Way @stephenway]

CI didn’t get slower or more expensive because computers did.

It got that way because most CI systems can’t prove when work is identical.

[Stephen Way @stephenway]

CI optimization usually means tuning pipelines.

Layerun doesn’t tune pipelines.
It removes unnecessary computation.

Same inputs, code, and environment should never produce new work.
That’s determinism, not optimization.

If CI feels like a slot machine, we’re building the opposite.
https://t.co/V0iyzRkito

[Stephen Way @stephenway]

Layerun is built around that idea.

Run only what changed.
Reuse everything else.
Zero tax on your own compute.

Stop building the past.
https://t.co/1xkqF9dgBr

[Stephen Way @stephenway]

CI didn’t get slower or more expensive because computers did.

It got that way because most CI systems can’t prove when work is identical.

[Stephen Way @stephenway]

CI should behave like a compiler:
deterministic execution,
content-addressable results,
and dependencies discovered from what code actually touches.

[Stephen Way @stephenway]

@Aaron9305631176 @jeremyphoward @ziglang @theo We’re working on one called Layerun.
Different model, different assumptions.
https://t.co/2ZpigFrUzX

[Stephen Way @stephenway]

@julianfaalk We’re working on one called Layerun.
Different model, different assumptions.
https://t.co/2ZpigFrUzX

[Stephen Way @stephenway]

@migueldeicaza We’re working on one called Layerun.
Different model, different assumptions.
https://t.co/2ZpigFrUzX

[Stephen Way @stephenway]

GitHub has since paused the rollout after pushback.

That doesn’t change the direction.
It confirms it.

If CI should feel more like infrastructure and less like a slot machine, our beta waitlist is open:

https://t.co/1xkqF9dgBr

[Stephen Way @stephenway]

CI started as automation.
Somewhere along the way it turned into rent.

[Stephen Way @stephenway]

We’re building Layerun to go the opposite direction:
deterministic execution, content-addressable caching, and causal dependency discovery.

Zero tax on your own compute.

[Stephen Way @stephenway]

We're about to launch the new Layerun site.

Causal + temporal CI.
Skip work that doesn’t matter.

Private beta opening soon.

[Stephen Way @stephenway]

Congratulations, your pipeline touched one file.
Now watch your CI reenact 2001: A Space Odyssey for 9 minutes.

[Hamel Husain @HamelHusain]

Made this video to explain evals

[Stephen Way @stephenway]

Most CI caching is just expensive guessing. Directory-based restore keys are a weak proxy for which work is actually equivalent across runs.

[Stephen Way @stephenway]

The graph your CI wishes it had. Every flaky cache key and over‑broad job is a hint that a missing dependency graph is trying to be born.

[Stephen Way @stephenway]

Your CI shouldn’t be surprised by the same code every day.