Blog: The missing prop + RemoteDataStore.of() + .fromValue()

[oyvindberg]

Summary

• Blog post: "The missing prop" — on stores-as-values, why prop drilling isn't the problem people think it is, and how explicit dependencies make testing/SSR/Storybook trivially easy
• RemoteDataStore.fromValue(data) — convenience constructor, shorthand for RemoteDataStore.of(RemoteData.success(data))
• Rename RemoteDataStore.always() → RemoteDataStore.of() — shorter, cleaner
• Enable Docusaurus blog with authors.yml and navbar link

Blog post structure

1. Opens with the punchline — testing, SSR, and Storybook are the same 3-line operation when data is a prop
2. "What we're actually talking about" — honest about stores being mutable internally; the argument is about substitutability, not FP purity
3. The infrastructure tax — testing/Storybook/SSR complexity exists because of hidden dependencies on global systems, not because components are complex
4. The prop drilling question — three concrete alternatives instead of hand-waving:
   • Pass ReactNode as slots (inversion of control)
   • Bundle related props into named objects (data modeling)
   • Use callbacks for child-specific data
5. One interface, every context — UserCard can't tell the difference between a real store, a test store, or a server-rendered store
6. Testing / Storybook / SSR / Composition — concrete code for each, including fair acknowledgment of the container/presentational counterpoint
7. The complexity budget argument — global caches work, but are cognitive overhead most components don't need
8. Impossible states — tagged unions vs bags of booleans
9. Honest tradeoffs — what you give up (deduplication by default, devtools, occasional pass-through props)

API changes

// New convenience constructor
RemoteDataStore.fromValue({ name: 'Alice' })
// equivalent to: RemoteDataStore.of(RemoteData.success({ name: 'Alice' }))

// Rename
RemoteDataStore.of(RemoteData.Pending)    // was: RemoteDataStore.always(...)

Test plan

• All 54 tests pass
• TypeScript compiles clean
• Blog renders in Docusaurus dev server
• Manual: review prose

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