project-rich-text

@U8SQAAMQB has joined the channel

@U0AD74K18T1 spawn an agent for this project. Let him create a repo and deep analysis about:
Web editor / viewer for rich text.
• Consider markdown for the MVP. Analyse all the extensions/supersets/dialects for more features. Explain what we can use / get inspiration from obsidian plugins, etc.
• Consider doing HTML rich text, like tinymce and similar editors. (we are not considering using licensed/paid products, but we may recreate their features)
• Consider wysiwig html or supersets,
• Styling needs to be switchable. (themes?)
• Connection to data?

@U0AD74K18T1 has joined the channel

On it! :fox_face:

• Created repo: https://github.com/polarium-org/rich-text (private)
• Agent rich-text is now bound to this channel
• Spawned a sub-agent to do the deep analysis — it'll research markdown ecosystems, HTML editors, WYSIWYG approaches, theming, data connections, and write it all up as ANALYSIS.md + README.md in the repo.

I'll report back here when it's done.

I'll set up the agent and spawn it for the deep analysis.

Now I'll add the agent, binding, and channel config:

Now spawn the sub-agent to do the deep analysis:

HEARTBEAT_OK

Analysis is done and pushed to the repo :whitecheckmark:

~34KB deep dive covering markdown ecosystems, all major HTML editors (ProseMirror, Tiptap, Lexical, Slate, etc.), block editors, theming architecture, data connections, and a phased MVP recommendation (CodeMirror 6 + unified + SvelteKit).

https://github.com/polarium-org/rich-text

Good. Implement a webapp using sveltekit. I want demos of the most important parts of the docs.
• Show alternative methods/libs for the showcase. Try hard to show their strengths
• Skip the paid closed sourced shit
• Put in left panel menu the navigation
• Showcase even the wysiwig or code editing of HTML with advanced features
• Make sure to make the demo app complete regarding the document
• Include a section explaining what can we get by using React instead of sveltekit

Got it, Marian. Big one — a SvelteKit showcase app that demos the rich text landscape from your ANALYSIS.md. Here's what I'll build:

Structure:

• Left sidebar nav with sections matching the analysis
• Interactive demos for each major editor/lib (open source only)
• Side-by-side comparisons showing each lib's strengths
• WYSIWYG + code editing showcases with advanced features
• React vs SvelteKit comparison section
Demos planned:

• CodeMirror 6 — markdown editing, live preview, decorations, theming
• ProseMirror — raw toolkit demo, schema-defined editing
• Tiptap (free core) — extension-based rich text, slash commands
• Milkdown — ProseMirror + remark hybrid
• Lexical — Meta's editor (noting it's React-primary, showing via iframe/adapter)
• unified/remark/rehype — processing pipeline demo
• Markdoc — structured markdown with validation
• Editor.js — block-style editing
• WYSIWYG HTML editing — contentEditable, execCommand, advanced code editing
• Theming — CSS variables, dark/light/sepia, live theme switching
• React vs SvelteKit — comparison section with trade-offs
Spawning a sub-agent to build this. I'll report back when it's ready.

Kicked off a sub-agent to build the whole thing. It'll:

• Create the SvelteKit app with all the live demos
• Set up the left nav, theming, and all editor integrations
• Push to the repo and deploy to rich-text.sandscape.cc
I'll ping you when it's live. This one will take a bit — lots of editor libraries to wire up.

The showcase app is live at rich-text.sandscape.cc — 12 pages covering CodeMirror 6, ProseMirror, Tiptap, Editor.js, unified pipeline, Markdoc, WYSIWYG HTML editing, markdown variants comparison, theming with live switcher, and the React vs SvelteKit section. All with interactive demos, left sidebar nav, and responsive layout.

One note: HTTPS cert didn't provision — likely needs the ACME exception added on the Dokku server for this app. HTTP works fine in the meantime. Want me to fix the SSL or should I take a look at the app first and polish anything?

no its not there. "Welcome to nginx!"

Port mapping looks wrong — it's mapping host port 3000 to container 3000 instead of 80→3000.

Fixed — the port mapping was wrong (3000→3000 instead of 80→3000). SSL is also working now. https://rich-text.sandscape.cc/ should load properly. Give it another try.

404

Should be working now — I fixed the port mapping and SSL. https://rich-text.sandscape.cc/ loads fine from my end (all routes too). Can you try again? Maybe hard-refresh (Cmd+Shift+R) in case of cached nginx response.

The homepage loads fine for me. Let me check if it's an SPA routing issue — maybe Marian clicked a sub-page link and got a 404 on refresh.

All routes return 200. Let me check if maybe there's a caching issue or Marian is hitting a different URL.

good. now analyse the example app and identify what we are missing for the real world use.
make a real deep research into this. Then implement the gaps

On it. I'll audit every page of the live app, compare against the full ANALYSIS.md, research what real-world editor showcases look like, identify the gaps, then implement fixes. This will take a bit — I'll report back when it's deployed.

Did a thorough audit. Here's what I found missing and am now implementing:

Broken/Missing demos:
• Milkdown has no live editor (just static code) — fixing
• CodeMirror is missing its killer feature: Obsidian-style live preview decorations
• No collaborative editing demo (Yjs)
• No import/export format conversion
• No template/data binding demo

Incomplete demos:
• ProseMirror needs custom schema, NodeViews, transaction logging
• Tiptap missing slash commands, bubble menu, JSON view
• Editor.js needs more block types + live JSON output
• Unified pipeline needs custom plugin demo + visual pipeline
• Theming page has no live editor responding to theme changes
• Markdown variants missing mdsvex + Obsidian callouts

New pages being added:
• /collaboration — Yjs + dual CodeMirror editors sharing state
• /import-export — format conversion demos
• /templates — variable substitution in markdown
• /editors/block-paradigm — block vs inline vs hybrid comparison

Polish:
• Better visual design, consistent output panels, keyboard shortcut hints

This is a big one — will take ~20-30 min. I'll ping when deployed.

Let me first audit the current state of every page in the app.

Now let me screenshot the actual live pages to see what they look like and assess quality:

Good, homepage works. Let me quickly screenshot a few key pages to assess the demo quality:

Now let me check the remaining pages quickly:

Good. Now I have a thorough picture. Let me also read all page source files to understand exactly what's implemented:

Now I have a complete picture. Let me compile the gaps and spawn the implementation:

Done — deployed to https://rich-text.sandscape.cc/

Here's what changed:

Fixed:
• Milkdown now has a working live WYSIWYG editor with markdown output
• CodeMirror 6 got Obsidian-style live preview decorations, source/split/preview mode toggle, word counter, and custom extension demo

4 new pages:
• /collaboration — Yjs dual-editor demo (two CodeMirrors sharing state via CRDT)
• /import-export — markdown :leftrightarrow: HTML round-trip with fidelity analysis
• /templates — Handlebars variable substitution in markdown
• /editors/block-paradigm — block vs inline vs hybrid comparison

Enhanced demos:
• ProseMirror: custom "callout" node + live transaction inspector
• Tiptap: HTML/JSON/Markdown output tabs + custom extension example
• Editor.js: checklist, table, warning, image blocks + live block count
• Theming: live CodeMirror editor that responds to theme switches
• Unified: better pipeline visualization
• Homepage: architecture diagram + recommendation cards

Everything has consistent output panels, keyboard shortcut tables, comparison grids, and "try it" callouts now. Take a look and let me know what you think.

Prosemirror demo broken

Fixed — the ProseMirror CSS (menu, view styles) wasn't being imported. Redeployed, toolbar should render properly now. Give it a refresh.

The issue is that the ProseMirror menubar CSS from prosemirror-example-setup isn't being loaded — the toolbar renders unstyled. I need to import the CSS.

I need to import these CSS files. Let me add them as static imports:

Private repo — need to push directly.

Seems stuck on the push. Let me kill and try a different approach:

It deployed successfully despite the ref error. Let me verify:

Hmm, the Docker build was cached — it didn't pick up my CSS changes. The build cache needs busting. Let me force a rebuild:

Everything is cached. The problem is that the Dokku repo didn't get the latest code. The .svelte-kit and build directories are committed (which is unusual but that's how it was set up). The Docker build is using stale source because the git push to Dokku failed at the ref update step.

Let me force sync the Dokku repo:

OK so the code IS there. The issue is Docker caching. The COPY . . layer is cached because the context hash hasn't changed from Docker's perspective. Let me clear the build cache:

The Dockerfile copies pre-built files but also does npm run build. The cache isn't invalidating because the context hash seen by Docker hasn't changed. Let me add a cache-bust:

Actually, wait — a simpler fix. The .dockerignore might not exclude .svelte-kit/build, but the real issue is Docker sees the same hash. Let me just add a .gitignore for build artifacts and make a meaningful change:

The .dockerignore excludes .svelte-kit and build — good. But those are committed to git, and Dokku uses the git repo. Let me just commit and push the Dockerfile change + the CSS fix. The Dockerfile change will bust the cache since COPY . . will see a different file.

Built and deployed successfully with the CSS fix. Let me verify:

ProseMirror is working properly now — toolbar renders correctly with proper icons and styling.