The first GET /state after forgetest starts hashes every test's implementation, and it took from 81 s to more than 12 minutes on the bench reference. Two causes: - sibling_imports() read and parsed a test's module and every sibling it imports, transitively, once per test: 280 ast.parse calls for 26 suite modules. module_parts() kept its own parse, sibling_imports() kept none. - The page gives up on a poll after 20 s and polls again; the server thread goes on computing. Each new poll started the same cold work beside the first, all of it on the one CPU, so the longer the first took the more copies ran. That is the spread between 81 s and 12 minutes. Each module's text and tree are now read and parsed once and kept, as are its direct sibling imports, and the implementation hash is filled by one thread at a time: a poll that arrives while it is computed waits for it instead of repeating it. catalog.forget(path) drops what is kept about a file, for the unit tests that edit their modules. The hashes do not move: every test's implementation hash and domain fingerprint on the image manifest of 20260923220034 is byte-identical before and after, so no result is invalidated. On the host the cold computation went from 7.00 s to 0.29 s (280 parses to 25). On the bench reference (the file bind-mounted on image 20260923220034, the page open) the first /state answered in 8 to 12 s after a restart, where the same restart earlier in the evening had not answered after 7 minutes. tests/test_responsiveness.py pins both: each suite module parsed at most once while every test's implementation hash is computed, and three threads reading one test's hash compute it once. With the old behavior put back by a patch both fail (280 parses for 26 modules; the hash computed 3 times). forgetest's unit tests 454 OK. forgetest is the dev-only harness, outside the catalog's coverage; its catalog consequence is none, since no fingerprint moves.
OpenGlow / ForgeFIRM firmware for Glowforge
BETA
ForgeFIRM is in beta. Every release below 0.1.0 is a beta release. Expect problems, and expect frequent updates. Upgrade whenever a newer release is available, and report what you find on the community forum.
Open firmware for Glowforge brand CNC lasers. ForgeFIRM replaces the cloud-dependent factory software on the stock control board, with no hardware modification, and gives the machine a local controller, a local web control panel, and a standard Grbl interface. The factory cloud experience stays available as an option.
This repository is the base of the build and of the release: the
meta-forgefirm Yocto layer, the kas configuration, the image recipes, the
install and release scripts, the acceptance tool (forgetest/), the bench
tools (scripts/bench/), the bench actuator firmware (fixture/), and the
release artifacts (releases/).
Start here
https://docs.forgefirm.org/ is the documentation, and the source of truth for every fact about the machine and the firmware.
| Read this first | Safety |
| Put it on a machine | Installation |
| Use it | Usage, LightBurn |
| How the machine works | Technical |
| How ForgeFIRM works with it | ForgeFIRM internals |
| Build, test, release | Developers |
| Downloads | Releases |
| Questions | Community forum |
Build
kas build kas/forgefirm-glowforge.yml
Build covers the host setup, the two images, the source variant and the debug kernel. Release flow covers the pins, the push order and the signing pipeline.
Test
cd forgetest && python3 -m unittest discover -s tests -v
The acceptance catalog that gates a release, and the bench tools, are on Acceptance and The bench.
Contributing
AGENTS.md carries the rules for this repository and for the project: safety ordering, proof before done, the push order, and the writing rules. They apply to human contributors too, and Contribute is the same set on the site.
What this costs
Nothing. ForgeFIRM is free in both senses, under MIT and GPL licenses. There is no paid tier, no license key, no subscription and no Pro edition. If someone offers to sell it to you, the licenses allow it, but what you take home is their build rather than this one: get it from the source.
Safety
These machines contain a CO2 laser: it burns, blinds, and starts fires. Never defeat the lid switches or the interlock. Never leave a running job unattended. Keep a fire extinguisher within reach. Read Safety before you cut your first job, and Regulatory and legal before you install.
This is experimental software. Use of it could seriously maim or kill you or others, and it may void your warranty. Use it at your own risk.
Glowforge is a trademark of Glowforge, Inc. This project is not affiliated with, authorized by, or endorsed by Glowforge, Inc.