feat: add Meta Effect presentation for SF Meetup

[bjacobso]

Summary

Create a complete Slidev presentation for the inaugural Effect SF Meetup covering Meta Effect philosophy, vendorable components, and live demos.

• 28-slide presentation with syntax-highlighted code examples
• Covers core philosophy, component showcase, architecture patterns, and roadmap
• Includes live demo section showing copy-paste workflow
• Ready to present immediately at the meetup

Content

• Opening hook: "What if Effect integrations worked like shadcn/ui?"
• Problem/solution framework highlighting version lock-in issues
• Live component examples (Vite, Remix, CI/CD)
• Effect service patterns and composition
• Comparison to npm packages and shadcn/ui
• Roadmap and contribution guide

How to Use

cd presentation
pnpm install
pnpm dev      # Start presenter mode
pnpm export   # Export to PDF

🤖 Generated with Claude Code

[claude]

PR Review: Meta Effect Presentation for SF Meetup

Overview

This PR adds a comprehensive Slidev presentation for the inaugural Effect SF Meetup. The presentation is well-structured, visually engaging, and effectively communicates the Meta Effect philosophy.

✅ Strengths

Content Quality

• Clear narrative arc: Opening hook → problem/solution → examples → vision
• Strong messaging: The "Not a framework. Not an npm package. Just Meta Effects." tagline is memorable and consistent with project philosophy
• Educational focus: Code examples demonstrate real Effect patterns (Effect.gen, Services, Layers, Schema)
• Good comparison framework: The npm package vs Meta Effect comparison (slides 18-20) clearly articulates value proposition

Code Examples

• Code examples are syntax-highlighted and use progressive disclosure with {all|1-3|5-10|...} patterns
• Examples demonstrate realistic use cases (Vite loader, Remix actions, CI/CD DAG)
• Good variety showing different framework integrations

Documentation

• README.md provides clear instructions for running and customizing
• Presentation structure is well-documented
• Helpful tips for presenter mode included

Technical Setup

• Clean .gitignore excluding build artifacts and node_modules
• Appropriate Slidev dependencies in package.json
• Scripts properly configured for dev, build, and export

⚠️ Issues & Recommendations

🔴 CRITICAL: Incorrect Code Examples

Location: slides.md:120-138 (Vite Loader example)

The code example doesn't match actual Meta Effect patterns. Several issues:

1. Import mismatch: Imports HttpRouter from @effect/platform but this doesn't align with how vendorable components work
2. API inconsistency: The createEffectLoader function signature doesn't match realistic usage
3. Missing context: The example is too abstract - doesn't show complete integration

Recommendation: Review actual components in meta-effect/packages/registry/src/effect-vite/ and ensure code examples match real implementations. Consider these fixes:

```ts
// More realistic example based on actual Meta Effect patterns
import { Effect, Layer } from "effect"
import { HttpRouter, HttpServer } from "@effect/platform"

export const createViteEffectMiddleware = (
router: HttpRouter.HttpRouter<never, never>,
layer: Layer.Layer<never, never, never>
) => ({
name: "effect-middleware",
configureServer(server: ViteDevServer) {
server.middlewares.use(async (req, res, next) => {
const response = await Effect.runPromise(
router.pipe(Effect.provide(layer))
)
// Handle response...
})
}
})
```

🟡 MEDIUM: URL References Need Verification

Location: Multiple slides reference URLs that may not exist yet:

• slides.md:624: github.com/effect-meta/meta-effect (check if org name is correct)
• slides.md:643-646: docs/registry/examples subdomains may not be live
• slides.md:317: Raw GitHub URL path may be incorrect

Recommendation:

1. Verify GitHub organization name (is it effect-meta or bjacobso?)
2. Either set up placeholder domains or use "Coming soon" messaging
3. Update GitHub raw URLs to match actual repository structure

🟡 MEDIUM: Remix Actions Example Incomplete

Location: slides.md:152-176

The withEffect implementation is simplified but missing error handling that would be critical in production. This might give misleading impression about Error handling in Effect.

Recommendation: Add at least one line showing error handling:
```ts
export const withEffect = <E, A>(
effectFn: (args: ActionFunctionArgs) => Effect.Effect<A, E>,
layer: Layer.Layer
) => {
return async (args: ActionFunctionArgs) => {
return await effectFn(args)
.pipe(
Effect.catchAll(error =>
Effect.succeed(json({ error }, { status: 500 }))
),
Effect.provide(layer),
Effect.runPromise
)
}
}
```

🟡 MEDIUM: CI/CD DAG Example Pseudo-code

Location: slides.md:184-212

Functions like detectCycles, topologicalSort, and runStep are referenced but not shown. This might confuse audience.

Recommendation: Either:

1. Add a comment // Implementation in registry to make it clear these exist
2. Show simplified 2-3 line implementations inline
3. Reference the actual file: "See effect-ci/dag-runner.ts for full implementation"

🟢 MINOR: Roadmap Dates May Be Stale

Location: slides.md:567-584

Uses "Q1 2025", "Q2 2025", etc. which will become outdated.

Recommendation: Either use "Next Quarter", "Following Quarter" or add a disclaimer "Roadmap as of Oct 2025"

🟢 MINOR: Missing Iconify Dependencies

The slides.md uses <carbon:arrow-right class="inline"/> (line 25) suggesting iconify icons, but I don't see iconify dependencies in package.json.

Recommendation: Add to package.json:
```json
"@iconify-json/carbon": "^1.2.0"
```

🟢 MINOR: Shadcn/ui Inspiration Could Be Stronger

Location: slides.md:422-454

The shadcn/ui comparison is good but could include a visual showing the parallel workflows.

Recommendation: Consider adding a slide showing side-by-side terminal commands:
```
shadcn/ui: npx shadcn-ui add button
Meta Effect: npx meta-effect add effect-vite/loader
```

🔒 Security Considerations

✅ No security concerns - presentation files only
✅ .gitignore properly excludes node_modules and build artifacts
✅ No credentials or sensitive data in slides

🎯 Test Coverage

N/A - This is a presentation, not code requiring tests. However:

Recommendation: Consider adding a script to validate:

1. All code examples have valid TypeScript syntax
2. All referenced URLs return 200 status
3. All code examples match actual registry components

Could create: presentation/scripts/validate-examples.ts

📊 Performance Considerations

✅ Appropriate use of Slidev for presentation
✅ Code examples use syntax highlighting which is performant
✅ Large lockfile (6698 lines) is expected for Slidev - no issues

📝 Adherence to CLAUDE.md Guidelines

Checking against project conventions:

✅ Follows "educational" principle - code teaches Effect patterns
✅ Aligns with "vendorable components" philosophy throughout
✅ Messaging consistent with "Not a framework" principle
✅ Examples show 50-100 line components
⚠️ Code examples should match actual registry implementations more closely

🎬 Overall Assessment

Rating: 7.5/10

This is a solid first draft of a presentation that effectively communicates the Meta Effect vision. The narrative structure is strong, and the visual design choices (progressive code reveals, v-clicks for pacing) show good presentation skills.

Blocking Issues:

• Code examples must be validated against actual implementations

Before Merging:

1. Fix code examples to match real implementations (CRITICAL)
2. Verify all GitHub URLs are correct (MEDIUM)
3. Add error handling to Remix example (MEDIUM)

Nice to Have:

• Add iconify dependencies for icons
• Validate code syntax with a script
• Update roadmap dates or add disclaimer

🚀 Suggested Next Steps

1. Review actual component implementations in `meta-effect/packages/registry/src/`
2. Update code examples to match reality
3. Test presentation with `pnpm dev` to ensure everything renders correctly
4. Consider doing a dry-run presentation to validate timing and flow
5. Export to PDF with `pnpm export` to ensure export works

💡 Additional Ideas

For future iterations:

• Add speaker notes with timing guidance
• Include a "Live Demo" slide with actual terminal commands to run
• Consider adding GIFs or screenshots of actual vendoring workflow
• Add a "Common Questions" appendix slide for Q&A prep

---

Great work on this presentation! The core message is clear and compelling. Just needs some technical accuracy fixes before it's ready to present. Let me know if you'd like help updating the code examples to match actual implementations.

🤖 Generated with Claude Code