f8d84da127
Adds a TH04 case study showing how its original 16-bit PC-98 DOS code spaces a bullet ring and aims it at the player. Fresh REA instructions are paired with a five-step C++ comparison and a ring diagram; homepage and showcase-index entries link to the new page and the requested reconstruction repository. The page credits TH04's maintained source and recorded compiler checks separately from the new REA inspection. Public provenance pins the target, source checkpoint and evidence. No original game assets, executables, private paths or raw result bundles are included. Pages remains manually dispatched. Validation: - Website verifier: 12 HTML pages, 185 local references, SVG XML and downloadable ZIP. - Browser: root and `/rea/`, 32 copy checks, five comparison steps, eight viewport widths, keyboard, reduced motion and no-JavaScript content. - Fresh real Ghidra verification through published REA 4.1.0: DOS load image verified, all 84 checks match; shown instructions match the function dossier. No Hopper verification was needed or run. - Independent claims/privacy reviews passed; seven immutable public source links match the local TH04 checkpoint. - `npm run check:fast`. The two clean compiler replays and 2,139 matching bytes are recorded TH04 checks, reviewed against their retained receipt and source hashes; the website update does not rerun the compiler or game. |
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| .. | ||
| evidence | ||
| public | ||
| README.md | ||
| figures.md | ||
README.md
REA website
An English static website with explanatory figures, worked guides and DX-Ball, Notion and TH04 investigations.
The public files are in website/public/. The site uses HTML, CSS and a small
script for copying code and following the assembly-to-C comparison. Python
packages the downloadable example; there is no frontend bundler or npm dependency.
Local preview
From the repository root:
python3 scripts/prepare-website.py
python3 -m http.server 4173 --bind 127.0.0.1 --directory website/public
Open http://127.0.0.1:4173/. Refresh the browser after editing a file.
Pages
public/index.html: product introduction and case-study overviews.public/showcase/index.html: the case-study index.public/showcase/dx-ball/index.html: sound-pan investigation and project status.public/showcase/notion/index.html: Notion's Electron clipboard bridge and rich clipboard format.public/showcase/th04/index.html: TH04's 16-bit DOS bullet-angle calculation and compiler checks.public/get-started/index.html: agent setup, first CLI result and provider guides.public/guides/: a guide hub and native, JavaScript/Electron and browser examples.public/examples/: downloadable Electron source and an interactive Notes browser app.public/assets/: shared styles, interactions, favicon and explanatory figures.
Navigation and assets use relative paths, so the same files work at the local
root and a GitHub Pages project path such as /rea/.
Content
Keep the copy direct and specific. Explain the task and the result before listing tool names. Setup commands and runtime requirements should match the released package. Keep the core learning path inside the site. Source, issue and evidence reference links may point to the corresponding repositories.
evidence/guide-examples.md records the published REA package, example digests and observed results behind the guides. The Notes Electron fixture is for static analysis; Electron is not a prerequisite for following that example. The separate Notes browser app runs in the local preview and constructs a CSV download after fetching its JSON data.
The Electron guide offers one ZIP containing the six source files under
notes-example/. scripts/prepare-website.py generates this download from
an explicit file list, with fixed timestamps and permissions. The ZIP is ignored
by Git; website checks and each manual publication regenerate it before checking
and uploading the public directory. The verifier checks that its entries match
the current source and contain no extra files.
Agent terminals show example prompts, not transcripts of previous investigations. All cursors blink continuously with the same CSS animation, respecting reduced-motion preferences. Both the prompt and animation work without JavaScript. The homepage and agent setup section share a copyable installation prompt; setup still presents its plan for approval.
DX-Ball figures and findings refer to the linked 7 October 2026 checkpoint,
commit a55dca27ec0a07018c1b2c95ae2be027f7d8c3c4. Update those links and figures
together when moving to another checkpoint. Case-study source excerpts come
from the MIT-licensed DX-Ball reconstruction repository.
The assembly excerpts were transcribed from the project's saved REA/Ghidra Evidence. evidence/dx-ball-sound-pan.md records their provenance and the scope of the validation claims. The original executable and complete private Evidence records are not website assets.
The homepage and DX-Ball overview diagrams are maintained as SVG source. Initial layout references were
created with the built-in image generation tool; figures.md retains
their prompts and the current asset notes. Figures provide an overview;
REA requests, assembly and C remain selectable HTML text. On narrow
screens, the diagrams scroll horizontally and can also be opened at full size.
The worked guides use semantic HTML flows that stack vertically on smaller
screens. The Electron teaching example uses CommonJS, matching its preload
code; the scoped lint override admits require only in that example directory.
The Notion case follows the same HTML figure style. Its short excerpts explain the packaged clipboard bridge; separate web-cache probes illustrate the rich clipboard and Markdown formats. Only selected source details and generic example data belong on the site. Machine paths, account identifiers, local configuration, complete vendor bundles and raw captured results stay outside the website. evidence/notion-clipboard.md records the REA package version, selected findings, source anchors and module-probe scope.
TH04 case study
The TH04 case inspects the original PC-98 DOS angle helper through REA 4.1.0. Its selected instructions are paired with readable C++ and a source SVG of fixed and aimed rings. evidence/th04-bullet-ring.md records the fresh load-image/function evidence and separately credited TH04 source and historical compiler replay. The figure illustrates the calculation; original game assets and executable bytes are not website downloads.
GitHub Pages
.github/workflows/website-pages.yml prepares and deploys only website/public.
It is the sole Pages publisher, manually triggered and restricted to main;
ordinary pushes and pull requests do not publish the site.
Website checks run only for pull requests that change website/, the verification
script or workflow definitions. They check local links, HTML fragments, SVG XML
and the single Pages publisher without installing npm dependencies. The same
checks run before each manual deployment. You can also run them locally:
python3 scripts/prepare-website.py
python3 scripts/verify-website.py
.github/workflows/pages.yml is a separate, manual-only VitePress build. It
has no Pages artifact upload, deployment job or deployment permissions. This
prevents documentation updates from replacing the public website. The legacy
publishing job has been removed, so enabling this build workflow cannot publish
the old site.
After the site is approved and merged, select GitHub Actions under the
repository's Settings → Pages → Build and deployment. Then run Publish REA
website from the Actions tab on main. The workflow uses the github-pages
environment and the official Pages actions.
The equivalent CLI command is:
gh workflow run website-pages.yml --repo morluto/rea --ref main
Local development does not change Pages settings or run the deployment workflow. Any environment protection rules are configured separately when publication is approved.