diff --git a/docs/REPO_LICENSE_TRACKING.md b/docs/REPO_LICENSE_TRACKING.md
index 39ee2ac..3d361d5 100644
--- a/docs/REPO_LICENSE_TRACKING.md
+++ b/docs/REPO_LICENSE_TRACKING.md
@@ -201,6 +201,8 @@ This file now also preserves the current truth that future models must not lose:
- restrictive live lanes: `5`
- the dedicated current doctrine note for `MPL`-side non-`GPL` usage is:
- [HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md:1)
+- the dedicated release-placement checklist for that route is:
+ - [HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md:1)
The twenty-three permissive live lanes are:
diff --git a/docs/ops/HYPERTWIST_IMPLEMENTATION_PHASE_1_KICKOFF.md b/docs/ops/HYPERTWIST_IMPLEMENTATION_PHASE_1_KICKOFF.md
index cde4b7b..77eb207 100644
--- a/docs/ops/HYPERTWIST_IMPLEMENTATION_PHASE_1_KICKOFF.md
+++ b/docs/ops/HYPERTWIST_IMPLEMENTATION_PHASE_1_KICKOFF.md
@@ -41,6 +41,9 @@ Current verified product-side reality is:
code license
- the dedicated current doctrine note for `MPL`-side non-`GPL` usage is:
- [HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md:1)
+- the dedicated release-placement checklist for selling or externally
+ distributing builds that include those `MPL` lanes is:
+ - [HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md:1)
- the closed `0R-E` packet still retains these non-live benchmark, oracle, or
clean-room-later rows:
- `cs0x7f/cstimer`
diff --git a/docs/ops/HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md b/docs/ops/HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md
index 4f72d51..d5baaf2 100644
--- a/docs/ops/HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md
+++ b/docs/ops/HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md
@@ -32,10 +32,15 @@ The current HyperTwist live-lane rollups remain:
- [REPO_LICENSE_TRACKING.md](C:/HyperTwist/docs/REPO_LICENSE_TRACKING.md:1)
- [ROADMAP.md](C:/HyperTwist/docs/v6_5_deep_manual_pack/HyperTwist/ROADMAP.md:1)
- [HYPERTWIST_IMPLEMENTATION_PHASE_1_KICKOFF.md](C:/HyperTwist/docs/ops/HYPERTWIST_IMPLEMENTATION_PHASE_1_KICKOFF.md:1)
+- [HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md:1)
This note does not replace those files. It clarifies the `MPL` route that
those files already authorize.
+For exact release-placement instructions, use the dedicated checklist:
+
+- [HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md:1)
+
## Non-advice boundary
This file is a HyperTwist engineering and compliance doctrine note.
diff --git a/docs/ops/HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md b/docs/ops/HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md
new file mode 100644
index 0000000..d1001bc
--- /dev/null
+++ b/docs/ops/HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md
@@ -0,0 +1,214 @@
+# HyperTwist MPL Distribution Placement Checklist
+
+Created on `2026-05-25`.
+
+## Purpose
+
+This file answers one narrow operational question for HyperTwist:
+
+- where `MPL-2.0` notices, license text, and source-availability instructions
+ must be placed when HyperTwist uses `MPL`-covered code from
+ `cubing/cubing.js` and `coqui-ai/TTS`
+
+This file does not replace the live-lane licensing doctrine. It is the
+release-placement checklist for that doctrine.
+
+Primary authority surfaces for this checklist are:
+
+- [HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md:1)
+- [REPO_LICENSE_TRACKING.md](C:/HyperTwist/docs/REPO_LICENSE_TRACKING.md:1)
+- the official `MPL-2.0` text:
+- the official Mozilla `MPL-2.0` FAQ:
+
+## One-line rule
+
+If HyperTwist distributes a build or browser bundle containing `MPL`-covered
+code, docs alone are not enough. The distributed product and its public
+distribution surfaces must tell recipients:
+
+- that `MPL`-covered code is present
+- where to read the `MPL-2.0` license
+- where to obtain the corresponding `MPL`-covered source
+
+## What HyperTwist is relying on today
+
+For the current live lanes:
+
+- `cubing/cubing.js`
+ - HyperTwist relies on the accepted `MPL` route
+ - HyperTwist does not rely on `GPL` permission for the current landed lane
+ - HyperTwist must not copy `GPL`-only material into that lane without a new
+ legal review
+- `coqui-ai/TTS`
+ - HyperTwist relies on the `MPL-2.0` code-side route for package code
+ - model, voice, and payload artifacts remain separate per-artifact review
+ - model or payload approval is not created by the package-code notice alone
+
+## Scenario matrix
+
+### 1. Internal-only use inside the organization
+
+If HyperTwist is only used internally and is not distributed externally:
+
+- external release-placement obligations do not activate in the same way
+- keep internal compliance records anyway
+- keep the doctrine note and this checklist available to release engineering
+
+### 2. Downloadable desktop app or packaged native software
+
+If HyperTwist is sold or distributed as a downloadable desktop product, put the
+`MPL` materials in all of these places:
+
+1. shipped artifact contents
+ - `ThirdPartyNotices.txt` or equivalent
+ - `licenses/MPL-2.0.txt` or another included full `MPL-2.0` text
+ - a source-availability statement that tells recipients where the
+ corresponding `MPL`-covered source can be obtained
+2. installed app UI
+ - `Open Source Notices`, `Legal`, or `About > Licenses`
+3. public download or distribution page
+ - link to the open-source notices
+ - link to the corresponding source location
+ - separate payload-license page if `coqui-ai/TTS` models or payloads are
+ shipped
+4. corresponding source location
+ - host the exact corresponding `MPL`-covered source snapshot used by the
+ release
+ - if HyperTwist modified `MPL`-covered files directly, publish those
+ modified files under `MPL`
+
+### 3. Public website or SaaS with server-side code only
+
+If the product is a hosted service and users do not receive the `MPL`-covered
+code in the browser or as a download:
+
+- server-side use alone is not the same as distributing the code to users
+- a public website legal page is not required solely for that server-side use
+- keep internal release records anyway
+
+### 4. Public website that delivers client-side JavaScript or other browser code
+
+If HyperTwist delivers browser code that includes `MPL`-covered files or a
+bundle containing them:
+
+1. the website should have a public `Legal`, `Open Source Notices`, or
+ equivalent page
+2. that page should identify the `MPL`-covered component
+3. that page should include or link the full `MPL-2.0` text
+4. that page should include a source-availability link for the corresponding
+ `MPL`-covered source
+5. the bundled asset or release notes should not hide the fact that the code is
+ present
+
+### 5. Source repo only, without distributed build
+
+If HyperTwist only keeps the code in source control and does not yet distribute
+it:
+
+- preserve upstream notices
+- keep the `MPL` doctrine note and this checklist
+- prepare a release-ready notices surface before external shipment
+
+## Exact HyperTwist placement checklist
+
+Before selling or externally distributing HyperTwist in a form that includes
+`MPL`-covered code, ship all of the following:
+
+### Required release-file surfaces
+
+- a root `ThirdPartyNotices.txt` or equivalent bundled notices file
+- a bundled `licenses/MPL-2.0.txt` or another full-copy location for the
+ `MPL-2.0` license text
+- a source-availability statement naming where the corresponding
+ `MPL`-covered source can be obtained
+
+### Required product UI surfaces
+
+- `Help > About > Open Source Notices`
+- or another stable in-product `Legal` / `Licenses` surface that users can
+ reach after installation
+
+### Required public distribution surfaces for downloadable releases
+
+- the release page or store page should reference the open-source notices
+- the release page or store page should reference the corresponding source
+ location
+- if `coqui-ai/TTS` models, voices, or payloads are shipped, the distribution
+ materials should link to their separate artifact-license page
+
+### Required public distribution surfaces for browser-delivered bundles
+
+- the website should have a public open-source notices page
+- that page should expose the `MPL-2.0` license text or a stable link to it
+- that page should expose the source-availability location for the
+ corresponding `MPL`-covered source
+
+## Component-specific notes
+
+### `cubing/cubing.js`
+
+HyperTwist should state all of the following in release materials:
+
+- `cubing/cubing.js` is used through the accepted `MPL` route
+- HyperTwist is not relying on `GPL` permission for the landed lane
+- the `MPL-2.0` text is available in the shipped notices materials
+- the corresponding `MPL`-covered source location is available to recipients
+
+If HyperTwist later modifies `MPL`-covered upstream files directly, release
+engineering must publish those modified files under `MPL` with the shipped
+release.
+
+### `coqui-ai/TTS`
+
+HyperTwist should state all of the following in release materials:
+
+- `coqui-ai/TTS` package code is used through the `MPL-2.0` code-side route
+- the `MPL-2.0` text is available in the shipped notices materials
+- the corresponding `MPL`-covered package-code source location is available to
+ recipients
+- any shipped model, voice, or payload artifact is licensed and disclosed
+ separately from the package-code notice
+
+## What the website must and must not do
+
+If the public website is only marketing the product:
+
+- it does not need a special `MPL` page solely because the product exists
+- it is still cleaner to link to the downloadable product's legal/notices page
+
+If the public website delivers browser code containing `MPL`-covered material:
+
+- it should have a public legal or open-source notices page
+- it should identify the component
+- it should provide the `MPL-2.0` text or a stable link to it
+- it should provide the corresponding source location
+
+## Minimum safe HyperTwist release package
+
+The minimum safe package for a distributed HyperTwist release that includes
+these lanes is:
+
+- `ThirdPartyNotices.txt`
+- `licenses/MPL-2.0.txt`
+- an in-product `Open Source Notices` or `Licenses` screen
+- release-page notice links
+- a stable source URL for the corresponding `MPL`-covered files
+- separate artifact-level notice handling for any shipped `coqui-ai/TTS`
+ models, voices, or payloads
+
+## Trigger for immediate re-review
+
+Stop and re-review the lane immediately if any of these become true:
+
+- HyperTwist copies `GPL`-only material into the `cubing/cubing.js` lane
+- HyperTwist modifies upstream `MPL`-covered files but has no plan to publish
+ those modified files on distribution
+- HyperTwist ships `coqui-ai/TTS` models or payloads without separate
+ artifact-level license review
+- HyperTwist serves browser bundles with `MPL`-covered code but no public
+ notices page or source-availability link
+
+## Non-advice boundary
+
+This is a HyperTwist engineering compliance checklist. It is not legal advice.
+If release posture changes materially, escalate to formal counsel review.
diff --git a/docs/v6_5_deep_manual_pack/HyperTwist/ROADMAP.md b/docs/v6_5_deep_manual_pack/HyperTwist/ROADMAP.md
index 19d9123..c7526ae 100644
--- a/docs/v6_5_deep_manual_pack/HyperTwist/ROADMAP.md
+++ b/docs/v6_5_deep_manual_pack/HyperTwist/ROADMAP.md
@@ -209,6 +209,8 @@ Donor-strength rule:
- `coqui-ai/TTS` is live as a bounded `MPL` code-side lane, while model and payload review remains separate from the code-license judgment; that separation is not a clean-room requirement for the package code
- the dedicated current doctrine note for this route is:
- [HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_BOUNDARY_AND_NON_GPL_USAGE_DOCTRINE_2026-05-25.md:1)
+- the dedicated release-placement checklist for this route is:
+ - [HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md](C:/HyperTwist/docs/ops/HYPERTWIST_MPL_DISTRIBUTION_PLACEMENT_CHECKLIST_2026-05-25.md:1)
- `Phase 0R` is now closed for the remaining `47` non-live rows
- `Phase 1R` is now closed as the retained-set contract and handoff overhaul
- `Phase 2R` is now closed as the retained-set ownership and acceptance packet sequence