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Update backlog and briefing for topic list/feed

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By specifier.
This commit is contained in:
Chris Troutner
2026-08-28 09:39:28 -07:00
parent f12e5b38db
commit d84a022c1a
2 changed files with 24 additions and 30 deletions
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specifier-prompt.md
+9 -8
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@@ -167,17 +167,18 @@ Goal: reach feature parity with [memo.cash](https://memo.cash).
| Tier | Features | Status |
|------|----------|--------|
| **P0** | Post, Set name, Reply, Efficient pagination | ✅ shipped |
| **P1** | Like counts (read side) ✅; client display ✅; Set profile text ✅; Set profile picture ✅; Follow/Unfollow | next |
| **P2** | Topics (list, feed, post, follow/unfollow) | later |
| **P1** | Like counts (read side) ✅; client display ✅; Set profile text ✅; Set profile picture ✅; Follow/Unfollow ✅ | ✅ shipped |
| **P2** | Topics (list ✅, feed ✅, post/follow/unfollow) | next |
| **P3** | Polls (create, add option, vote) | later |
| **P4** | Mute / unmute user | later |
| **P5** | Send money memo action, MIP-0009 token exchange | later |
| **P6** | Repost, ranked feed, notifications, search, tags, following feed | later |
**Suggested next spec:** P1.5/P1.6 — add Follow/Unfollow buttons on the profile
page that broadcast `0x6d06`/`0x6d07`, plus the DB read side (follow state,
following/followers lists). The indexer already stores follows in `followsDb`;
the missing pieces are the client write path and the DB read side.
**Suggested next spec:** P2.3/P2.4/P2.5 — add a topic post composer and topic
follow/unfollow buttons on the topic feed page that broadcast `0x6d0c`/
`0x6d0d`/`0x6d0e`, plus the DB read side (topic follow state, topic followers).
The indexer already stores topic messages and follows in `roomsDb`; the missing
pieces are the client write path and the DB read side for follows.
---
@@ -361,5 +362,5 @@ At the end of each session, update this file:
- Note the current `master` HEAD commit.
- State the next feature to work on.
Current `master` HEAD: `7e19503` (follow/unfollow user merged to `master`; client unit 93, property 14, acceptance all-features, lint, and build passing; DB unit 109, acceptance all-features, lint passing).
Next action: **spec P2.1/P2.2** — Topics (list / discovery / feed).
Current `master` HEAD: `f12e5b3` (topic list/discovery + topic feed merged to `master`; client build, unit 108, lint passing; DB unit 161, lint passing; indexer unit 46, lint passing).
Next action: **spec P2.3/P2.4/P2.5** — Topics (post a topic message / follow a topic / unfollow a topic).
specs/feature-backlog.md
+15 -22
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@@ -157,8 +157,8 @@ follows in `roomsDb`; the DB and client need query/render support.
| # | Feature | Memo action | Components | Status |
|---|---------|-------------|------------|--------|
| 2.1 | Topic list / discovery | read | D, C | 🔴 missing |
| 2.2 | Topic feed page | read | D, C | 🔴 missing |
| 2.1 | Topic list / discovery | read | D, C | ✅ |
| 2.2 | Topic feed page | read | D, C | ✅ |
| 2.3 | Post a topic message | `0x6d0c` | C, I, D | 🟡 partial (I/D store; no C UI) |
| 2.4 | Follow a topic | `0x6d0d` | C, I, D | 🟡 partial |
| 2.5 | Unfollow a topic | `0x6d0e` | C, I, D | 🟡 partial |
@@ -213,29 +213,22 @@ Polls require a new data model and rendering. The indexer has no handler yet.
## Suggested next spec
**Follow / Unfollow user** (P1.5 / P1.6):
- `psf-memo-client`: add a Follow button on the profile page that broadcasts the
`0x6d06` Follow action (and an Unfollow button broadcasting `0x6d07`).
- `psf-memo-db`: expose follow state and following/followers lists.
- The indexer already stores follows in `followsDb`; the missing pieces are the
client write path and the DB read side.
**Post a topic message / Follow a topic / Unfollow a topic** (P2.3 / P2.4 / P2.5):
- `psf-memo-client`: add a topic post composer and topic follow/unfollow buttons
on the topic feed page that broadcast `0x6d0c` / `0x6d0d` / `0x6d0e`.
- `psf-memo-db`: expose topic follow state and a topic's followers list.
- The indexer already stores topic messages and follows in `roomsDb`; the
missing pieces are the client write path and the DB read side for follows.
### cashaddr conversion (use bch-js, not a new dependency)
### Topic payloads (UTF-8, no cashaddr conversion)
The follow/unfollow OP_RETURN payload is the followee's **20-byte hash160**
(P2PKH). The `followsDb` store keys followees by that hash160. Convert between
cash addresses and hash160 with **bch-js** `Address` tools, which are already
available and preferred over adding a separate cashaddr library:
Unlike follow/unfollow user, topic actions carry plain UTF-8 text (the topic
name and, for `0x6d0c`, the message). No bch-js cashaddr conversion is needed
for topics. The `0x6d0c` topic message payload is `topic_name + message` with a
combined limit of 214 bytes; `0x6d0d` / `0x6d0e` carry only the topic name.
- Client: `bchjs.Address.toHash160(followeeCashAddress)` returns the hash160
hex for the `0x6d06` / `0x6d07` payload. bch-js is embedded in
`minimal-slp-wallet`, so no new client dependency is needed.
- DB read side: `bchjs.Address.toHash160(followeeCashAddress)` for the follow
state lookup, and `bchjs.Address.hash160ToCash(followeePkHash)` to return
cash addresses in the following/followers lists. Add `@psf/bch-js` to
`psf-memo-db` rather than a separate cashaddr package.
This is the next smallest end-to-end win after the set-avatar-url write path closed.
This is the next smallest end-to-end win after the topic list/feed read side
closed.
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