[liayan]

Step 7 of the build-from-source guide documents uv pip install -e ., but ai-dynamo depends on a pre-release of aiconfigurator and uv rejects pre-releases by default, so the documented command cannot succeed:

error: ... we can conclude that your requirements are unsatisfiable.
hint: `aiconfigurator` was requested with a pre-release marker
      (e.g., aiconfigurator==0.11.0.dev20260728), but pre-releases
      weren't enabled (try: `--prerelease=allow`)

Add --prerelease=allow to the command and note why it is needed.

Verified on Ubuntu 24.04 / Python 3.12: the documented command exits 1, the same command with --prerelease=allow exits 0, after which python3 -m dynamo.frontend --help (step 8) succeeds.

This is my first contribution to Dynamo. I hit this while bringing up a source build on Blackwell (B300) for disaggregated-serving work, and I would like to continue development here. I'm happy to rework the fix or wording if maintainers prefer a different approach.

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Summary by CodeRabbit

• Documentation
  • Updated installation instructions for editable setups.
  • Clarified that allowing pre-release dependencies is required for successful installation.

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Walkthrough

The source build documentation updates the editable installation command to allow pre-release dependencies. It explains that aiconfigurator requires this option and that installation fails without it.

Changes

Source installation documentation

Layer / File(s)	Summary
Allow required pre-release dependency docs/fern/pages/developer-guide/advanced-customizations/building-from-source.md	The editable installation command adds --prerelease=allow. The documentation explains the aiconfigurator pre-release requirement and the resulting dependency resolution failure when the option is omitted.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: 🔵 Low · up to 95014

The guide’s installation command may enable pre-releases unnecessarily while still not documenting the mocker extra required for the affected component. This is a bounded documentation correctness issue that is mergeable with maintainer awareness and a wording update.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the documentation build change and the required pre-release installation setting.
Description check	✅ Passed	The description explains the problem, fix, verification, and issue status, although the unused issue-path placeholder remains.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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Inline comments:
In
`@docs/fern/pages/developer-guide/advanced-customizations/building-from-source.md`:
- Around line 84-86: Update the documented mocker installation command to
install the mocker extra explicitly with uv pip install -e '.[mocker]'
--prerelease=allow, while keeping the base uv pip install -e . command free of
the pre-release flag.

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[github-actions]

👋 Hi liayan! Thank you for contributing to ai-dynamo/dynamo.

Just a reminder: The NVIDIA Test Github Validation CI runs an essential subset of the testing framework to quickly catch errors.Your PR reviewers may elect to test the changes comprehensively before approving your changes.

🚀

[dagil-nvidia]

Review of head a1383c2: 1 must-fix, 4 consider. All repo gates green, and the command change itself is correct - both the failure and the fix were reproduced end to end (default-strategy resolution of the aisimulate pin fails with the exact documented error; --prerelease=allow resolves the full chain).

Must-fix

1. docs/fern/pages/developer-guide/advanced-customizations/building-from-source.md:85 - the added explanation names the wrong refused package: uv accepts tfp-nightly transitively (every one of its published versions is a pre-release, so the default if-necessary-or-explicit strategy allows it - verified by resolution), while the packages uv actually refuses are aiconfigurator and aiconfigurator-core (both have stable releases, so no exemption applies; the doc also omits the second one). Minimal fix:

   `aisimulate==0.1.0.dev1` is a pre-release, and it in turn pins the pre-releases
   `aiconfigurator==0.11.0.dev20260728` and `aiconfigurator-core==0.11.0.dev20260728`.
   

Consider

2. The NOTE below the fix still quotes the bare uv pip install -e .; a reader copying from the NOTE hits the exact failure this PR fixes.
3. The zh-CN mirror of this page still documents the failing command; translation parity is not CI-enforced, so it will not go red on its own.
4. Three exact pre-release versions are hardcoded into prose and rot on the next bump; version-free wording ("the base dependency aisimulate is currently a pre-release and pins further pre-release packages") ages better.
5. Repo-side alternative the maintainers may prefer: one line, prerelease = "allow" under the existing [tool.uv] table, makes every documented uv pip install -e . work flagless from the repo root (verified empirically that uv pip resolution picks it up) - and fixes the same failing command in README.md and several other pages at once; tradeoff is project-wide pre-release acceptance.

Also for release planning, not this PR: the 1.5.0 wheel will ship the aisimulate pin for Python below 3.13, so plain uv pip install ai-dynamo on 3.12 hits this same refusal at release time unless the pin goes stable or install guidance changes.

Verified sound: the flag and value exist on uv pip install; "required on Python < 3.13" exactly matches the marker and aisimulate's requires-python; the quoted pin versions are verbatim correct; the bare < renders fine in this Fern setup; links and conventions clean.

Comment-only review; severity calls stay with the human reviewers.

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