workflow_steps rebuilt the first line of a step with its first key two columns past the dash, whatever followed the dash. A step written with more than one space after its dash (`- run: ./build/tray_test`, its `if: false` at the column of the run key) then had its first key at one column and the others at another: every key after the first was read as a child of the first and dropped, `if:`, `continue-on-error:`, `working-directory:` and `with:` among them. So such a step under `if: false` counted as running its host test, and such a checkout under a condition counted as a checkout. _KEY_RX did not read a quoted key, so a step's `"if": false` was dropped the same way. Both spellings are valid YAML that GitHub skips or tolerates. The parser now replaces the dash with a space and realigns nothing, so the key column of a step is the column its keys use. _KEY_RX reads a key in single or double quotes as the same key. The HOST_TESTED comment states the rule the lint applies: no `if:` other than `true` and no `continue-on-error:` other than `false` on the step or its job. Proof: forgetest-ci "Unit tests" (`python -B -m unittest discover -s tests -v` in forgetest): test_manifest.py runs 38 tests, OK, on Windows with python 3.14 and on Ubuntu 24.04 with python 3.12, with test_a_step_counts_only_when_every_run_of_the_workflow_runs_it_and_its_failure_fails_the_run extended by a step with three spaces after its dash under `if: false` and a step under a quoted `"if": false`, neither running the test. Negative controls on scratch copies: the first line rebuilt as before fails the three-space case; _KEY_RX as before fails the quoted case. The 17 workflows of the tree's repositories (205 steps) parse to the same steps and events before and after the change. The coverage lint on the tree manifest from the recipe pins reports 0 uncovered paths, 0 host-tested row problems, 43 tests. pyflakes reports no undefined name. Acceptance: none. forgetest is dev-only and in no fingerprint (the source_sha of 43 of 43 tests is unchanged); the lint runs in CI, not in a campaign, and tests/ are in no fingerprint.
OpenGlow / ForgeFIRM firmware for Glowforge
BETA
ForgeFIRM is in beta. Every release below 0.1.0 is a beta release. It's stable, but you may still hit the occasional bug, 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.