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tegwick
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Combined cohort memo for the three open-source local-first all-in-one workspaces, studied together because they share the trait none of the prior eleven systems had: the store is a CRDT (Anytype any-sync, AFFiNE Yjs/y-octo, AppFlowy Yrs). The cohort thesis: CRDT changes the adapter math — the backend performs conflict-free merge itself (shard-wiki must not impose git/text merge; speak the CRDT via a replica or stay projection/overlay), history is a CRDT update log (supplement not git), and the attach surface is a replica or self-host sync endpoint, with Anytype adding P2P (no single endpoint) + E2EE (opaque). Added UC-64 (CRDT-synced shard with native merge), UC-65 (P2P/decentralized shard, no single canonical endpoint); enriched UC-36/47/48/51/55/57/58/61. Catalog now 65 UCs. Architecture for SHARD-WP-0002 T11/T14: merge-model capability (proposed 13th spectrum: none/git/native-CRDT), CRDT-replica substrate + P2P/no-central-endpoint attach mode, endpoint-model capability, MCP as an integration surface. Boundary: CRDT local-first candidate shards — attach a replica/projection as pages, respect native merge, never re-drive their sync; not substrates and not the federation layer. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
47 lines
2.4 KiB
Markdown
47 lines
2.4 KiB
Markdown
# 260614 — Local-first workspaces cohort deep dive (Anytype · AFFiNE · AppFlowy)
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Date: 2026-06-14
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## What this is
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A **combined cohort deep dive** of three open-source, local-first "all-in-one workspace"
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tools — **Anytype**, **AFFiNE**, **AppFlowy** — studied together because they share the
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one trait none of the prior eleven systems had: **the store is a CRDT** (Anytype's
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*any-sync*, AFFiNE's *Yjs/y-octo*, AppFlowy's *Yrs*). The substrate is the contribution;
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studying them together isolates it from each tool's surface features.
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Per-tool highlights:
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- **Anytype** — `any-sync`: **P2P + E2EE** CRDT (sync/file/consensus/coordinator nodes;
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encrypted backup), a **typed object graph** (user-editable types + relations), IPFS
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files, an **open API + MCP**.
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- **AFFiNE** — **Yjs/y-octo** over **OctoBase**; **BlockSuite** editor framework; docs,
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whiteboards, and databases as **views of the same block set**; WebSocket sync,
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self-host (Docker, MPL-2.0).
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- **AppFlowy** — **Yrs** via **AppFlowy-Collab** (Rust); Flutter UI; Notion-style
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**databases + views**; pluggable storage/sync (RocksDB/IndexedDB; AppFlowy Cloud/
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Supabase).
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## Contents
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| Path | Role |
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|------|------|
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| `findings.md` | Per-tool sections, the CRDT cohort thesis, comparative matrix, combined capability profile, INTENT mapping, UC seeds, architecture notes, sources |
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## Status
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Cohort dive complete. Two new use cases promoted to `spec/UseCaseCatalog.md` (UC-64
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attach a CRDT-synced local-first shard with native conflict-free merge; UC-65 attach a
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peer-to-peer / decentralized shard with no single canonical endpoint); UC-36/47/48/51/55/
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57/58/61 enriched. Logged for `SHARD-WP-0002` (T11/T14): a **merge-model** capability
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(proposed thirteenth spectrum: `none / git / native-CRDT`), a **CRDT-replica** substrate +
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**P2P/no-central-endpoint** attach mode, an **endpoint-model** capability, and MCP as an
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integration surface.
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**Cohort thesis recorded:** CRDT changes the adapter math — the backend performs
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conflict-free merge itself (so shard-wiki must not impose git/text merge), history is a
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CRDT update log (supplement, not git), and the attach surface is a **replica or sync
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endpoint** (Anytype adds **P2P + E2EE**). **Boundary:** CRDT local-first candidate shards
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— attach a replica/projection as pages, respect native merge, never re-drive their sync;
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not substrates and not the federation layer.
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</content>
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