zzstoatzz.io
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STATUS.md
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STATUS.md
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## recent work
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### January 2026
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#### atprotofans supporters display (PRs #695-696, Jan 1)
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**supporters now visible on artist pages** - artists using atprotofans can show their supporters:
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- compact overlapping avatar circles (GitHub sponsors style) with "+N" overflow badge
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- clicks link to supporter's plyr.fm artist page (keeps users in-app)
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- `POST /artists/batch` endpoint enriches supporter DIDs with avatar_url from our Artist table
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- frontend fetches from atprotofans, enriches via backend, renders with consistent avatar pattern
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**route ordering fix** (PR #696): FastAPI was matching `/artists/batch` as `/{did}` with did="batch". moved POST route before the catchall GET route.
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---
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#### UI polish (PRs #692-694, Dec 31 - Jan 1)
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- **feed/library toggle** (PR #692): consistent header layout with toggle between feed and library views
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- **shuffle button moved** (PR #693): shuffle now in queue component instead of player controls
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- **justfile consistency** (PR #694): standardized `just run` across frontend/backend modules
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---
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### December 2025
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#### avatar sync on login (PR #685, Dec 31)
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---
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this is a living document. last updated 2026-01-01.
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backend/src/backend/config.py
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backend/src/backend/config.py
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validation_alias="ATPROTO_SCOPE_OVERRIDE",
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description="Optional OAuth scope override",
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)
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oauth_encryption_key: str = Field(
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default="",
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validation_alias="OAUTH_ENCRYPTION_KEY",
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if self.scope_override:
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return self.scope_override
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# base scopes: our track, like, comment, list, and profile collections
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scopes = [
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f"repo:{self.track_collection}",
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f"repo:{self.like_collection}",
···
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validation_alias="ATPROTO_SCOPE_OVERRIDE",
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description="Optional OAuth scope override",
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)
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use_permission_sets: bool = Field(
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default=False,
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validation_alias="ATPROTO_USE_PERMISSION_SETS",
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description="Use ATProto permission sets instead of granular repo scopes. Requires permission set lexicons to be published to the app namespace authority.",
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)
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oauth_encryption_key: str = Field(
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default="",
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validation_alias="OAUTH_ENCRYPTION_KEY",
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if self.scope_override:
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return self.scope_override
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# use permission sets if enabled (requires lexicons to be published)
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if self.use_permission_sets:
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return f"atproto include:{self.app_namespace}.authFullApp"
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# fallback: granular repo scopes for each collection
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scopes = [
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f"repo:{self.track_collection}",
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f"repo:{self.like_collection}",
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docs/lexicons/overview.md
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docs/lexicons/overview.md
···
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this removes the manual sync burden and enables type-safe ATProto record handling.
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## permission sets
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permission sets bundle OAuth permissions under human-readable titles. instead of users seeing "fm.plyr.track, fm.plyr.like, ..." they see "plyr.fm Music Library".
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### fm.plyr.authFullApp
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full access for the main web app - create/update/delete on all collections.
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### enabling permission sets
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set `ATPROTO_USE_PERMISSION_SETS=true` to use `include:fm.plyr.authFullApp` instead of granular scopes.
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**requirement**: permission set lexicons must be published to `com.atproto.lexicon.schema` collection on the `plyr.fm` authority repo (`did:plc:vs3hnzq2daqbszxlysywzy54`).
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see [research doc](../research/2026-01-01-atproto-oauth-permission-sets.md) for implementation details.
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## adding new lexicons
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when adding a new record type:
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docs/research/2026-01-01-atproto-oauth-permission-sets.md
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docs/research/2026-01-01-atproto-oauth-permission-sets.md
···
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# research: ATProto OAuth permission sets
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**date**: 2026-01-01
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**question**: how do ATProto OAuth permission sets work, and how could plyr.fm adopt them?
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## summary
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ATProto permission sets are lexicon schemas (`type: "permission-set"`) that bundle OAuth permissions under human-readable titles. they're published to `com.atproto.lexicon.schema` in an authority's ATProto repo and resolved by the PDS during OAuth authorization. plyr.fm currently uses granular `repo:` scopes directly; adopting permission sets would provide better UX and enable per-feature authorization (e.g., separate scopes for developer tokens).
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## findings
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### how permission sets work
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permission sets are lexicon documents with `type: "permission-set"` in `defs.main`. they're published to the `com.atproto.lexicon.schema` collection in an ATProto repo and resolved via the NSID's authority domain.
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**resolution flow:**
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1. app requests `include:fm.plyr.authBasicFeatures?aud=did:web:api.plyr.fm%23svc_appview` in OAuth scope
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2. PDS extracts NSID `fm.plyr.authBasicFeatures`
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3. reverses authority: `fm.plyr` → `plyr.fm`
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4. resolves `plyr.fm` to a DID via DNS TXT record
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5. fetches lexicon from that DID's repo at `com.atproto.lexicon.schema/fm.plyr.authBasicFeatures`
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6. displays `title` and `permissions` to user in authorization UI
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**real example from Bailey Townsend's repo** (did:plc:rnpkyqnmsw4ipey6eotbdnnf on selfhosted.social):
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```json
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{
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"id": "dev.baileytownsend.demo.authBasicFeatures",
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"lexicon": 1,
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"$type": "com.atproto.lexicon.schema",
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"defs": {
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"main": {
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"type": "permission-set",
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"title": "Basic App Functionality",
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"description": "An example simple permission set",
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"permissions": [
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{
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"type": "permission",
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"resource": "repo",
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"action": ["create"],
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"collection": ["dev.baileytownsend.demo.example"]
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}
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]
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}
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}
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}
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```
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### plyr.fm's current OAuth implementation
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plyr.fm uses a custom fork of the atproto SDK (`git+https://github.com/zzstoatzz/atproto@main`) with OAuth 2.1 support.
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**current scope construction** (`backend/src/backend/config.py:420-441`):
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```python
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@computed_field
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@property
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def resolved_scope(self) -> str:
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scopes = [
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f"repo:{self.track_collection}", # repo:fm.plyr.track
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f"repo:{self.like_collection}", # repo:fm.plyr.like
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f"repo:{self.comment_collection}", # repo:fm.plyr.comment
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f"repo:{self.list_collection}", # repo:fm.plyr.list
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f"repo:{self.profile_collection}", # repo:fm.plyr.actor.profile
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]
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return f"atproto {' '.join(scopes)}"
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```
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**optional teal.fm scopes** (`config.py:443-452`):
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```python
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def resolved_scope_with_teal(self, teal_play: str, teal_status: str) -> str:
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base = self.resolved_scope
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teal_scopes = [f"repo:{teal_play}", f"repo:{teal_status}"]
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return f"{base} {' '.join(teal_scopes)}"
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```
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**resulting scope string:**
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```
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atproto repo:fm.plyr.track repo:fm.plyr.like repo:fm.plyr.comment repo:fm.plyr.list repo:fm.plyr.actor.profile
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```
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### developer tokens
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developer tokens are independent OAuth sessions for API/CLI access (`backend/src/backend/api/auth.py:333-374`).
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**key differences from regular sessions:**
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- separate OAuth grant with independent refresh tokens
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- configurable expiration (default 90 days, max 365)
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- stored with `is_developer_token=True` flag
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- don't set browser cookies on exchange
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**current behavior:** dev tokens request the same scopes as regular sessions. with permission sets, we could:
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1. define `fm.plyr.authFullApp` for browser sessions (all collections)
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2. define `fm.plyr.authDeveloper` for dev tokens (possibly read-heavy, limited write)
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3. define `fm.plyr.authReadOnly` for third-party apps (read-only access)
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### namespace constraints
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permission sets can **only reference resources in the same NSID namespace**. `fm.plyr.authBasicFeatures` can only grant permissions to `fm.plyr.*` collections.
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this means:
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- teal.fm scopes (`fm.teal.alpha.*`) cannot be bundled in our permission sets
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- we'd still need to request teal scopes separately: `include:fm.plyr.authBasicFeatures repo:fm.teal.alpha.feed.play repo:fm.teal.alpha.actor.status`
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### publishing permission sets
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to publish a permission set, write it to `com.atproto.lexicon.schema` collection:
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```python
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# pseudocode
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await client.com.atproto.repo.putRecord(
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repo=our_did,
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collection="com.atproto.lexicon.schema",
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rkey="fm.plyr.authBasicFeatures",
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record={
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"$type": "com.atproto.lexicon.schema",
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"lexicon": 1,
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"id": "fm.plyr.authBasicFeatures",
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"defs": {
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"main": {
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"type": "permission-set",
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"title": "plyr.fm Music Library",
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"description": "Create and manage your music library",
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"permissions": [...]
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}
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}
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}
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)
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```
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**DNS requirement:** `plyr.fm` must have a TXT record `did=did:plc:...` pointing to the repo containing the lexicons.
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### official bluesky permission sets
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bluesky defines several permission sets in their lexicons (`lexicons/app/bsky/`):
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- `app.bsky.authFullApp` - full Bluesky app permissions
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- `app.bsky.authCreatePosts` - create posts only (no update/delete)
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- `app.bsky.authViewAll` - read-only access
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- `app.bsky.authManageProfile` - profile management only
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- `app.bsky.authManageNotifications` - notification management
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these demonstrate the pattern of offering tiered permission levels.
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## code references
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- `backend/src/backend/config.py:420-452` - current scope construction
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- `backend/src/backend/_internal/auth.py:165-194` - OAuth client creation with scopes
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- `backend/src/backend/api/auth.py:333-374` - developer token flow
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- `backend/src/backend/models/session.py` - session model with `is_developer_token` flag
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- `docs/lexicons/overview.md` - current lexicon documentation
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- `docs/authentication.md` - OAuth flow documentation
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## permission set for plyr.fm
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### fm.plyr.authFullApp
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full access for the main web app:
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```json
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{
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"permissions": [
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{
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"type": "permission",
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"resource": "repo",
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"action": ["create", "update", "delete"],
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"collection": [
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"fm.plyr.track",
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"fm.plyr.like",
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"fm.plyr.comment",
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"fm.plyr.list",
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"fm.plyr.actor.profile"
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]
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}
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]
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}
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```
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additional permission sets (e.g., listener-only, read-only) can be added when there's a concrete use case.
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## resolved questions
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1. **DNS setup**: `_atproto.plyr.fm` already has TXT record `did=did:plc:vs3hnzq2daqbszxlysywzy54`
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2. **which repo?**: the `plyr.fm` account (did:plc:vs3hnzq2daqbszxlysywzy54) on bsky.network - just publish to `com.atproto.lexicon.schema` collection
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3. **SDK support**: the SDK fork at `zzstoatzz/atproto` just passes scope strings to the PDS - permission set resolution is server-side. any PDS supporting OAuth 2.1 should resolve `include:` scopes.
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## open questions
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1. **teal.fm integration**: since teal scopes can't be in our permission sets (different namespace), keep as granular `repo:` scopes for teal
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2. **developer token differentiation**: should dev tokens get different permission sets than browser sessions?
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## next steps
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1. draft permission set lexicons in `/lexicons/` as JSON files
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2. publish to `com.atproto.lexicon.schema` collection on the plyr.fm account
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3. update OAuth client to use `include:fm.plyr.authFullApp` scope
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4. test with staging environment first
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lexicons/authFullApp.json
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lexicons/authFullApp.json
···
···
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{
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"lexicon": 1,
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"id": "fm.plyr.authFullApp",
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"defs": {
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"main": {
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"type": "permission-set",
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"title": "plyr.fm",
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"description": "Upload and manage audio content, playlists, likes, and comments.",
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"permissions": [
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{
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"type": "permission",
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"resource": "repo",
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"action": ["create", "update", "delete"],
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"collection": [
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"fm.plyr.track",
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"fm.plyr.like",
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"fm.plyr.comment",
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"fm.plyr.list",
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"fm.plyr.actor.profile"
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]
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}
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]
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}
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}
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}