- Anchor the message list to the bottom (`reverse: true`) so new messages
stay in view instead of landing below the fold.
- Move chat history from the OS keystore (O(n²) JSON blob, silent 200-msg
cap) to a separate encrypted Drift/SQLCipher DB (`ChatDatabase`):
indexed append, uncapped history, dedup as a unique-key invariant. It's
an ephemeral per-device cache, isolated from the inventory schema, its
migrations, and its sync. No data migration (pre-release).
- Add day separators (Today/Yesterday/locale date) and a per-bubble time,
all via ICU (12/24h per locale; Localizations locale maps Asturian →
Spanish for intl date symbols).
- Add peer avatars (deterministic colour from the pubkey + name initial),
surface send failures that were previously silent, and make bubble text
selectable (addresses, links).
- New i18n keys in en/es/pt/ast; tests for grouping, formatting, avatars,
scroll anchoring, storage and send errors.
Docs: docs/design/chat-storage.md + open-decisions.md.
The most foundational Block-2+ gap: the data model was built CRDT-ready
(HLC, tombstones, LWW, append-only Movement) and the import reconciler
proves the merge — but nothing replicated a device's inventory to your
OTHER devices. Only manual file backup/restore moved data between devices.
This lands the transport foundation in commons_core (seed-agnostic, on the
shared connection — the 'one connection, N interfaces' shape):
- SyncTransport: moves an opaque, encrypted snapshot blob between ONE
identity's own devices. The core carries bytes + does the crypto; the app
decides what the bytes are and how to merge them.
- NostrSyncTransport: NIP-78 app-data (kind 30078, addressable/replaceable
per device via the d-tag), content NIP-44-encrypted TO SELF, discovery
filtered to your own author key. Each device keeps one replaceable record.
Tests (MiniRelay, pure Dart): a snapshot replicates to the identity's other
device; the relay only ever sees ciphertext; another identity neither
receives nor could decrypt; re-push replaces; two devices keep their own.
Confirms the open-decisions §D.4 guarantee (sync leaks neither the key nor
plaintext). NEXT slice (app): a SyncService that serializes the inventory
(reusing ExportImportService), pushes on mutation, and runs the existing
idempotent importInventory on receive; a stable per-install device id;
wire sync into SocialSession.
Slice 4 of Block 2. The pure rule was already parameterised; this adds the
policy, cold-start and UI around it.
- commons_core: WotParams (sigQty/stepMax/sigValidity, Duniter defaults) +
WebOfTrust.membersWith; npubToHex helper (NIP-19 decode) for adding roots.
- WotSettings (keystore): the active parameters, configurable — a young
network loosens them and tightens as it grows, as Ğ1 did. Defaults Duniter.
- TrustReferents: the bootstrap 'seeds' membership is measured from — a
bundled asset (empty until real founders are curated, no invented keys)
unioned with referents the user adds by npub/QR. Honest cold-start.
- TrustCubit: computes the full membership verdict against referents+params
alongside the personal circle, and exposes a TrustTier (networkMember >
inYourCircle > vouched > unknown). Certifications issued with the active
validity (they expire and renew, Duniter rule).
- UI: chat trust badge by tier; a 'Network of trust' screen (manage roots +
advanced params) reached from the profile. i18n en/es/pt/ast.
Tests: WotParams/membersWith, npubToHex, TrustReferents, WotSettings, and
TrustCubit tiers/membership. Resolves the WoT-parameters decision
(open-decisions §B). Trust net stays empty/undetermined until seeded — by
design; users bootstrap their own roots.
Adds pseudonymous, switchable social identities derived from the SAME root
seed via an account index (NostrKeyDerivation.deriveFromSeed(seed, account)).
HKDF is one-way so accounts are unlinkable to the Ğ1 key; account 0 is the
original identity, byte-for-byte unchanged (no rotation for current users),
and every account regenerates from the single seed — so switching adds
nothing to back up.
- SocialAccountStore: keystore-backed active account + max created.
- Per-identity stores (chats, profile, name cache) namespaced by account
scope (account 0 = legacy keys, no migration) so identities never mix.
- switchSocialAccount() re-derives the identity, re-scopes the stores and
restarts the inbox listener; RestartWidget rebuilds the tree to pick up
the new social singletons. DB/inventory untouched.
- Profile 'Your identities' switcher: list, create, switch (with a note
that messages/contacts are kept separate per identity). i18n en/es/pt/ast.
Tests: account-indexed derivation (legacy 0 unchanged, accounts distinct
yet deterministic, negatives rejected); SocialAccountStore; per-identity
store scope isolation. Resolves the flagged 'change identity' decision
(open-decisions §B).
Known: switching resets navigation to home (full tree rebuild).
User-flagged (on-device feedback): no way to change the social identity today
(derived once from the root seed at startup). Records the two options —
pseudonymous social key (recommended) vs full root-seed reset — and the runtime
re-derivation implications, for a future round.
The de-risking spike validated the whole social happy path, so Block 2 moves
from "do NOT start" to STARTED. Records the build order (transport foundation in
commons_core first, on the vetted pure-Dart nostr lib) and marks open-decisions
D.3/D.7 as resolved by the spike.
Adds TrustTransport as the third interface on the shared NostrConnection,
completing the social-layer happy path in the spike:
- WebOfTrust: pure, Flutter-free Duniter membership rule (N certs from members +
within distance D of bootstrap referents), iterated to a fixpoint. The
commons_core-worthy piece; TDD'd (threshold, distance cutoff, transitive
growth, expired/revoked/self exclusion).
- NostrTrustTransport: certifications as a custom addressable kind (30777,
keyed by issuer+subject) — certify renews, revoke replaces, certs expire.
- Trust filters spam (network-trust §2): seeds certify Alice; Eve stays
uncertified; Bob discovers both offers and annotates authors — Alice known,
Eve unknown — all over ONE shared connection.
Findings updated: WoT risk High -> Medium (policy/bootstrap, not feasibility);
overall scope Medium-High -> Medium — all three transport contracts now proven.
30 tests green, analyzer clean, Block 1 untouched.
Extends the Block 2 spike to attack the highest-risk unbuilt piece (private
messaging) and to prove the Q2 architecture recommendation with running code:
- NostrConnection: one shared socket+key+sign+REQ/EOSE lifecycle. Refactored
NostrOfferTransport onto it; added NostrMessageTransport — two thin contracts
on ONE connection (the 'one connection, three interfaces' shape).
- NIP-44 v2 encryption (secp256k1 ECDH -> ChaCha20 + HMAC, length-hiding pad).
- NIP-17/NIP-59 gift-wrap: rumor(14) -> seal(13) -> wrap(1059, ephemeral key).
Alice->Bob DM round-trips through the relay: encrypted, sender authenticated,
and metadata-private (relay/eavesdropper sees only ciphertext, an ephemeral
author and the recipient p-tag — Alice stays hidden).
Findings updated: NIP-17 risk drops Medium-High -> Medium (hardening, not
feasibility); next de-risking target is the web of trust. NIP-44 not yet
vector-verified (noted). 20 tests green, analyzer clean, Block 1 untouched.
Throwaway research spike (spike/ branch, outside pub workspace, no prod deps
touched). Validates the open Block 2 decisions before committing a funded round:
1. Deterministic one-way secp256k1 (Nostr) key derived from the Ğ1 root seed
via HKDF — user still backs up ONE thing. Reproducible + signs (BIP340).
2. OfferTransport abstraction over Nostr NIP-99 (kind 30402); Offer stays
inventory/location-agnostic, geohash coarsened on the wire (tested).
3. publish->discover-by-geohash proven end-to-end against an in-process
hermetic mini-relay (~34ms round-trip).
Findings + risks + recommendation in docs/design/spike-block2-findings.md.
Block 1 suite untouched. 14 tests green, analyzer clean.
Interchange export/import for Phase 1 (data-model §7):
- JSON: canonical, versioned envelope (formatVersion 1) with all sync
metadata verbatim, photos embedded as base64, tombstones excluded.
Species are re-resolved on import by scientific name (catalog ids are
per-install). Reader tolerates unknown fields/enum values (§5.2) and
rejects newer format versions with a clear error.
- CSV: export-only spreadsheet flatten, one row per lot, RFC 4180
escaping, never any photo bytes.
- Import merges by UUIDv7 id in one transaction: insert-if-unknown
preserving original stamps, last-writer-wins by packed HLC for known
mutable rows, append-only movements; afterwards the local clock
receiveEvent()s the newest imported stamp so it never runs behind.
- Settings gains a Backup section (export CSV/JSON, import JSON with
confirmation); file dialogs behind a FileService interface backed by
file_picker (MIT).
- Tests: codec round-trip and tolerance, reconciler LWW, repository
export→import round-trip (fresh DB, idempotent re-import, newer-local
wins, clock monotonicity, species re-resolution), backup widget flows.
Expand LotType from {seed, plant} to six append-only forms (seed,
seedling, plant, tree, bulb, cutting) and add an optional Presentation
attribute (pot/tray/plug/bareRoot/rootBall) kept separate from quantity
so 'how many' and 'in what packaging' never conflate.
Add attachments.sortOrder so the cover photo is the lowest-ordered one,
enabling reordering from the full-screen viewer. Expand QuantityKind
with the new plant-aware forms.
Migrations are additive (v1→v5 all covered by migration_test); enum
values are stored by name and appended only, keeping CRDT sync safe.
Visual pass toward docs/mockups (06 inventory, 07 item):
- Bundle the seedks icon font (chars a–k → seed pictograms: jar, packet, spoon…)
and a SeedGlyph/QuantityKindIcon helper.
- Green app bar + pale-green canvas theme (buildTaneTheme).
- Inventory list: rounded-square photo thumbnail or green initial avatar, bold
title, scientific-name subtitle, trailing edit pencil, styled category
headers, rounded search field, seed-glyph empty state.
- Quantity selectors (quick-add + add-lot) show the seed pictogram + word;
detail lot lines use the kind's glyph.
- Detail header restyled to mockup 07: category link + scientific name on the
left, photo on the right.
watchInventory now also returns the linked species' scientific name (subtitle).
37 app tests green; seedks font verified in the Linux asset bundle.
