docs: adopt Qt+GPUI native desktop strategy, retire CEF (Wave 0, PR A) - #406
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ADR-0019 (CEF as next-gen desktop runtime) and ADR-0020 (thin C++ CEF binding choice) are superseded by ADR-0021, which retires CEF from the target architecture in favor of Qt 6/QML as primary native desktop and GPUI as a later-admitted secondary native product. Both superseded ADRs explicitly pre-authorized this via "a superseding ADR, not a silent pivot" - status lines updated in place, full historical content preserved. New evidence: R-19/#405 (sandboxed-renderer Crashpad crash dumps cannot work under Linux/Yama without weakening the sandbox). docs/adr/README.md index also gains the previously-missing 0020 row. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
New docs/native/ROADMAP-QT-GPUI-DESKTOP.md is the authoritative 24-wave execution roadmap for the Core-first -> Qt Hardened Edition -> GPUI Vision Edition strategy (ADR-0021). Corrected at adoption time to reflect actual repo state: Wave 1 (DesktopPlatform boundary) is marked already-complete/CI-proven (PR #384/#385), and the risk register cites open issues #357/#359/#360/#361 (Tauri fs-encryption correctness gaps) and #332 (Tauri performance baseline) as concrete R-15 inputs rather than abstract future risks. docs/historical/cef/README.md is a short pointer doc explaining what was retired and why - git history is the real archive, not a copied document tree. ROADMAP.md's desktop-runtime section and README.md's Documentation Hub table now point at the new roadmap instead of the retired CEF one. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Reviewer's GuideUpdates the architecture documentation to retire the CEF-based desktop strategy in favor of a Qt 6 + GPUI native roadmap, introduces ADR-0021 as the formal decision record, rewires documentation hubs to the new roadmap, and corrects DesktopPlatform/Tauri guidance in CLAUDE.md — with no code or CI changes to implement Qt/GPUI yet. File-Level Changes
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Strategic Architecture Documentation — CEF Retirement, Qt/GPUI Adoption
This PR documents a major architectural direction change: retiring CEF from the desktop runtime target and adopting a Qt 6 + GPUI multi-renderer native strategy. The documentation updates span three key files (CLAUDE.md, README.md, ROADMAP.md) plus comprehensive new ADRs and roadmap artifacts.
What was reviewed:
- Cross-file consistency of the new Qt/GPUI strategy references
- ADR supersession chain (ADR-0019/0020 → ADR-0021)
- Documentation accuracy for DesktopPlatform abstraction pattern
- Correctness of historical CEF record preservation
Outcome: All documentation accurately reflects the strategic decision, maintains proper cross-references, and correctly describes the DesktopPlatform boundary that enables this renderer substitution. The superseding ADR pattern is properly applied, and the historical CEF work is preserved in git history per the documented approach.
No defects found that block merge.
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📝 WalkthroughWalkthroughThe PR retires CEF as the target desktop architecture, establishes Qt 6/Qt Quick as the primary native desktop strategy, defines GPUI as a gated secondary product, and updates roadmap, ADR, historical, and Tauri integration guidance. ChangesNative desktop strategy
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to This documentation-only PR changes the stated desktop strategy without changing runtime behavior. It is mergeable with explicit owner follow-up for bounded documentation issues, including a contradictory Wave 0 scope statement, a broken link, an August 20, 2026 completion claim despite the current date being August 19, 2026, and an over-broad Crashpad description that could mislead maintainers. Possibly related PRs
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Actionable comments posted: 4
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Inline comments:
In `@docs/adr/0021-qt-gpui-native-desktop-strategy.md`:
- Around line 176-189: Update the companion cleanup status to remain
future-oriented until the cleanup PR and CI evidence exist: in
docs/adr/0021-qt-gpui-native-desktop-strategy.md lines 176-189, change
completed-tense CEF removal and CI statements to planned wording; in
docs/native/ROADMAP-QT-GPUI-DESKTOP.md lines 921-934, leave CEF cleanup and
dependency-removal gates unchecked; and in docs/historical/cef/README.md lines
20-29, describe removal and relocation as planned.
In `@docs/historical/cef/README.md`:
- Around line 26-29: Update the relocated-file link in the README to use
../../native/UI-DOMAIN-STATE-CLASSIFICATION.md so it resolves to the target
under docs/native.
In `@docs/native/ROADMAP-QT-GPUI-DESKTOP.md`:
- Around line 3-10: Align the documentation statuses and dates with the actual
publication state: in docs/native/ROADMAP-QT-GPUI-DESKTOP.md lines 3-10, use
August 19, 2026 and describe adoption as planned rather than completed. In
docs/adr/0019-cef-desktop-runtime-strategy.md line 3 and
docs/adr/0020-cef-binding-choice-thin-cpp-host.md line 3, mark the decisions
superseded and CEF retired from the target architecture without implying product
migration completion. In docs/historical/cef/README.md lines 3-8, leave the
historical end date unpublished until the retirement event occurs.
In `@ROADMAP.md`:
- Around line 30-32: Revise the Crashpad statement in the top-level rationale to
avoid claiming incompatibility with every genuinely sandboxed Linux renderer.
Preserve the environment condition and specify that the observed blocker is
Linux Yama ptrace_scope=1 combined with sandboxing, which causes Crashpad’s
ptrace path to be denied; keep CEF excluded from the v2.0 Foundation scope.
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CLAUDE.mdREADME.mdROADMAP.mddocs/adr/0019-cef-desktop-runtime-strategy.mddocs/adr/0020-cef-binding-choice-thin-cpp-host.mddocs/adr/0021-qt-gpui-native-desktop-strategy.mddocs/adr/README.mddocs/historical/cef/README.mddocs/native/ROADMAP-QT-GPUI-DESKTOP.md
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The roadmap, historical pointer, and ADR-0021 stated CEF source/CI removal and PR #404/Issue #405 closure as already done. That work is scoped to companion PR B, which hasn't opened yet - this PR (A) only establishes the strategic decision. Corrected all affected checklists and status lines to distinguish PR A (written, pending merge) from PR B (not started), and switched "was removed"/"is closed" wording to "will be removed"/"will be closed" wherever the described state isn't true on main yet. No architecture decision changes. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Actionable comments posted: 1
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Inline comments:
In `@docs/native/ROADMAP-QT-GPUI-DESKTOP.md`:
- Around line 2214-2216: Update the Wave 0 status statement near the roadmap’s
PR scope summary to identify only items 4 and 6–7 as PR B scope; keep item 5
excluded because it is assigned to PR A.
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Fix all unresolved CodeRabbit comments on this PR:
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… wording, link fix, R-19 precision)
- Fix broken relative link in docs/historical/cef/README.md
(../native/... resolved outside docs/, needed ../../native/...).
- ROADMAP.md: replace the over-generalized Crashpad claim ("cannot
work under a genuinely sandboxed Linux renderer") with the precise,
demonstrated scope (Yama ptrace_scope=1 + Crashpad's ptrace-strategy
topology, without sandbox weakening) - matches ADR-0021's own R-19
description.
- ADR-0019/0020/0021 status lines and the roadmap header: clarify that
"Accepted"/"Adopted" describes the strategic decision, not completed
CEF-removal execution (Wave 0 PR B, not yet merged). ADR-0021 stays
"Accepted" per this repo's own ADR convention - every existing ADR
(0008, 0009, 0018, etc.) uses "Accepted" immediately with an
execution-status parenthetical rather than a "Proposed" status; no
ADR in this repo has ever used "Proposed". ADR-0021 now follows that
same pattern explicitly.
No architecture decision changes - wording precision only.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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CodeRabbit correctly flagged that Sec37's "items 4-7 are PR B scope" contradicted the very next sentence assigning item 5 (this roadmap + ADR-0021) to PR A. The bot's own auto-resolution comment claiming this was "addressed in commit 3d14437" was incorrect - verified against current file content before trusting it. Fixed for real: item 5 is explicitly PR A scope, items 4 and 6-7 are PR B scope. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Codecov Report✅ All modified and coverable lines are covered by tests. 📢 Thoughts on this report? Let us know! |
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Closing and immediately reopening to force GitHub to recompute mergeability — several installed GitHub Apps (Renovate, CodeAnt AI, Cloudflare, Cursor, CodeRabbit, Claude, Greptile, Amazon Q) have check-suites stuck at QUEUED despite their actual checks already reporting pass, blocking mergeStateStatus. No content change. |
Pull request was closed
…atus - scripts/check-tauri-import-boundary.mjs: narrow the header's "comment-only mentions not flagged" claim to whole-line comments - inline block comments on a code line are NOT masked by commentLineMask and would be flagged. (Also fixes a JSDoc-closing bug my own first attempt at this note introduced - a literal `*/` inside the example text prematurely closed the outer block comment, breaking the script; caught by re-running the guardrail before committing.) - packages/desktop-contracts/src/types.ts: fix pre-existing PascalCase symbol names in the doc comment (TauriDesktopPlatform/ WebDesktopPlatform) to the actual exported instances (tauriDesktopPlatform/webDesktopPlatform). - docs/architecture/native-readiness.md: the relocated UI-DOMAIN-STATE-CLASSIFICATION.md's "content unchanged" claim was imprecise - only the classification table is unchanged, its framing was updated. - docs/historical/cef/README.md, docs/native/ROADMAP-QT-GPUI-DESKTOP.md, docs/adr/0021-qt-gpui-native-desktop-strategy.md: replace self-referential "PR B open, pending merge / as of this writing" language (which would go stale and false the moment this PR merges) with durable, post-merge-accurate wording. Wave 0 is now marked COMPLETE - both PR A (#406) and PR B (#407) are finished; this is the last commit before merge and CI is green. - Fixes a markdownlint MD018 false-heading trigger from a line wrap. One CodeRabbit suggestion (add a QNBS-v3 comment to types.ts) was a false positive - line 1 already has one covering this exact change; replied with evidence rather than adding a duplicate. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
* chore(cef): retire obsolete desktop CEF target Removes apps/desktop-cef/ (the thin C++ host + Rust FFI-boundary scaffold, ADR-0020's Option B spike made real), scripts/cef/ (SDK fetch/build/proof tooling), and the advisory-only cef-learning-harness.yml CI workflow (never part of the required ci-success aggregator - zero impact on required gates). Git history is the archive - see docs/historical/cef/README.md. Per ADR-0021. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs(cef): archive obsolete CEF governance docs, relocate reusable classification Removes 14 of 15 docs/cef/ files (roadmap, risk register, competency matrix, ownership manifest, binding scorecard, knowledge-base articles) - all CEF-program-specific, git history is the archive. Relocates docs/cef/UI-DOMAIN-STATE-CLASSIFICATION.md to docs/native/UI-DOMAIN-STATE-CLASSIFICATION.md and generalizes its framing (drops CEF-wave section citations, updates its "later waves" pointers to the new Qt/GPUI roadmap's wave numbering and cites issues #357/#359/#360/#361 as the concrete R-15 gaps) - the Redux domain/UI-state classification table itself is unchanged and remains directly useful for the future Rust Core migration-priority work. Per ADR-0021. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore: remove dead CEF references from config, comments, and CLAUDE.md - package.json: remove the 3 cef:* scripts (invoked now-deleted scripts/cef/*.mjs). - .gitignore: remove the .cef-cache/ entry (fetched by now-deleted scripts/cef/fetch-cef-sdk.mjs). - CLAUDE.md: drop the apps/desktop-cef/ path from the QNBS-v3 comment-convention table (directory no longer exists; the C++/Rust convention itself stays for the future Qt bridge layer). - scripts/check-tauri-import-boundary.mjs, packages/desktop-contracts/src/types.ts: fix header comments citing the deleted CEF roadmap doc and a "future CEF adapter" that will never exist - comment-only, zero logic change (guardrail re-verified green after this edit). Per ADR-0021. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs: add historical callout to native-readiness.md, sync Wave-0 status to complete docs/architecture/native-readiness.md: fix the opening citation (pointed at the now-deleted CEF roadmap) to reference ADR-0021, and add a historical-context callout before the Wave 2 snapshot section explaining those rows document real work against paths removed in this PR. The evidence rows themselves are preserved unedited - this is an audit trail of what was actually verified, not rewritten to imply it didn't happen. Also fixes the one Wave-1 reference that pointed at a relocated (not deleted) file (UI-DOMAIN-STATE-CLASSIFICATION.md's new docs/native/ path). docs/native/ROADMAP-QT-GPUI-DESKTOP.md, docs/historical/cef/README.md: Wave 0 doc-sync now that PR B is actually executing this removal and PR #404/Issue #405 are actually closed (both closed once ADR-0021 existed on main, independent of this PR's own merge status) - flips the "PR B not started" / "will be removed" language to reflect the real current state, without yet claiming COMPLETE (that happens once this PR's own CI is green and it merges). Per ADR-0021. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs: address CodeRabbit/CodeAnt findings on PR B, finalize Wave-0 status - scripts/check-tauri-import-boundary.mjs: narrow the header's "comment-only mentions not flagged" claim to whole-line comments - inline block comments on a code line are NOT masked by commentLineMask and would be flagged. (Also fixes a JSDoc-closing bug my own first attempt at this note introduced - a literal `*/` inside the example text prematurely closed the outer block comment, breaking the script; caught by re-running the guardrail before committing.) - packages/desktop-contracts/src/types.ts: fix pre-existing PascalCase symbol names in the doc comment (TauriDesktopPlatform/ WebDesktopPlatform) to the actual exported instances (tauriDesktopPlatform/webDesktopPlatform). - docs/architecture/native-readiness.md: the relocated UI-DOMAIN-STATE-CLASSIFICATION.md's "content unchanged" claim was imprecise - only the classification table is unchanged, its framing was updated. - docs/historical/cef/README.md, docs/native/ROADMAP-QT-GPUI-DESKTOP.md, docs/adr/0021-qt-gpui-native-desktop-strategy.md: replace self-referential "PR B open, pending merge / as of this writing" language (which would go stale and false the moment this PR merges) with durable, post-merge-accurate wording. Wave 0 is now marked COMPLETE - both PR A (#406) and PR B (#407) are finished; this is the last commit before merge and CI is green. - Fixes a markdownlint MD018 false-heading trigger from a line wrap. One CodeRabbit suggestion (add a QNBS-v3 comment to types.ts) was a false positive - line 1 already has one covering this exact change; replied with evidence rather than adding a duplicate. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs: clarify Wave-0-complete status doesn't contradict item 10's guardrail Item 10 ("do not begin Qt UI until Wave 1/2 prerequisites are proven") is a standing constraint for future waves, not a Wave 0 task - its "[Wave 2 not yet started]" bracket was reading as contradicting the blanket "all items below are done" line above it. Scoped the status line to items 1-9 and explained item 10's role explicitly. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
User description
Summary
Strategic reset: WorldScript Studio retires CEF (Chromium Embedded Framework) from its target desktop-runtime architecture and adopts a Qt 6/QML-first, GPUI-second native desktop strategy, with Tauri as transitional-only (retired once Qt reaches Stable) and Rust becoming an authoritative product Core.
This is PR A of two (Wave 0). It adds the decision record and adopts the new roadmap; it does not delete any CEF source/CI (that's PR B, which follows once this merges). No Qt/GPUI/Rust-Core implementation begins here.
ptrace_scope=1, Crashpad cannot produce sandboxed-renderer crash dumps without weakening the sandbox, a trade that isn't acceptable. PR feat(cef): real Linux sandbox-enable attempt (no_sandbox=false) #404 (the real sandbox-enable attempt) has 4 failing required-adjacent CI jobs and its own body admits "Wave 2 is not fully closed."docs/native/ROADMAP-QT-GPUI-DESKTOP.md— the 24-wave Core-first → Qt Hardened → GPUI Vision roadmap, adapted from the strategic source document with two corrections: Wave 1 (DesktopPlatformboundary) is marked already-complete/CI-proven (PR refactor(desktop): introduce renderer-neutral platform contracts #384/refactor(desktop): route Tauri consumers through the DesktopPlatform adapter #385 — this repo's DesktopPlatform work was already merged before this reset), and the risk register cites open issues Desktop atomic writes: fsync temp file + parent directory before/after rename for true crash durability #357/Desktop fs-data key-rotation migration is not crash-resumable (mixed-key state possible) #359/Desktop fs reads/writes don't participate in the encryption-migration admission lock (race window during disable/rotate) #360/Bind desktop fs-backed ciphertext to its record identity (AAD) to prevent cross-file substitution #361 (Tauri fs-encryption correctness gaps) and [Bug]: Sluggishness? (.deb) #332 (Tauri performance baseline) as concrete inputs to the future R-15 encryption deliverable.docs/historical/cef/README.md— short pointer doc for what gets removed in PR B and why; git history is the real archive, not a copied document tree.docs/adr/README.mdindex gains the previously-missing ADR-0020 row plus the new supersession statuses.ROADMAP.mdandREADME.md's Documentation Hub now point at the new roadmap instead of the retired CEF one.CLAUDE.mdDesktopPlatform references corrected — they describedservices/tauriRuntime.tsas the Tauri-abstraction point, which is stale since PR refactor(desktop): introduce renderer-neutral platform contracts #384/refactor(desktop): route Tauri consumers through the DesktopPlatform adapter #385 already moved that role topackages/desktop-contracts/services/desktopPlatform.ts(found and fixed along the way, independent of the CEF decision).What this PR does NOT do
No Qt/GPUI/Rust-Core code, no CEF source/CI deletion (PR B), no branch cleanup, no merging of PR #404, no closing of #404/#405 (drafted for PR B once ADR-0021 exists on
main).Test plan
pnpm run lintcleanpnpm run typecheckclean (exact CI command)pnpm run i18n:checkclean (no locale files touched, ran as part of standard pre-push trio)node scripts/check-doc-metrics.mjsclean🤖 Generated with Claude Code
Summary by Sourcery
Adopt the Qt-first, GPUI-later native desktop strategy and formally retire CEF as the target runtime without beginning native implementation or removing CEF sources in this change.
New Features:
Enhancements:
Documentation:
CodeAnt-AI Description
Retire CEF and adopt a Qt-first, GPUI-later native desktop strategy
What Changed
Impact
✅ Clearer native desktop direction✅ CEF security and crash-diagnostics trade-off removed✅ Preserved Tauri and web products during migration💡 Usage Guide
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