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Public git repos — served from a NIP-34 GRASP relay at git.upleb.uk

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path: root/src/config.rs
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2026-04-10feat: add cleanup-empty-repos subcommand to remove stale events for empty ↵DanConwayDev
git repos Adds a maintenance subcommand that scans the LMDB database for kind 30617 (repository announcement) events whose bare git repo on disk is empty or missing, then removes both the 30617 and any matching 30618 (state) events. A relay should not serve announcement or state events for a repository with no git data. This was needed to clean up repos leaked by the bug fixed in 2161e3c, and is useful as an ongoing maintenance tool. Usage (dry-run by default, stop relay before --execute): ngit-grasp cleanup-empty-repos [--relay-data-path <path>] [--git-data-path <path>] [--execute] The relay itself is now invoked as an implicit 'serve' subcommand, preserving full backward compatibility with existing deployments and env-var configuration.
2026-03-25chore: remove arbitrary default max connections limitDanConwayDev
When NGIT_MAX_CONNECTIONS is unset the relay imposes no connection cap, deferring to OS fd limits and infrastructure controls. The option remains available for operators who want an explicit ceiling.
2026-02-25drop nostr-db backend support, keep only lmdb and memoryDanConwayDev
2026-02-03Merge relay.ngit.dev migration: bug fixes and migration toolingDanConwayDev
This merge includes critical bug fixes and comprehensive migration tooling developed during the relay.ngit.dev migration effort. Bug Fixes: - Fix git protocol error handling to return HTTP 200 with ERR pkt-line - Fix naughty list false positives and DNS failure identification - Fix database query filters in load_existing_events (remove .since()) - Fix OID fetch tracking to distinguish 0 OIDs from successful fetches - Fix purgatory event source tracking for filtered expiry logging - Implement OID retry logic for 'not our ref' errors Migration Tools & Documentation: - Complete 5-phase migration analysis pipeline with orchestration script - Phase 1: Event fetching from source relay - Phase 2: Git sync verification - Phase 3: Categorization and relay comparison - Phase 4: Log extraction (parse failures, purgatory expiry) - Phase 5: Action classification for migration decisions - Comprehensive migration guide with lessons learned - Troubleshooting guide for permission and corruption issues Configuration: - Add NGIT_LOG_LEVEL configuration option - Update git throttle limits to 60/minute - Improve logging throughout for better observability
2026-01-27feat: add NGIT_LOG_LEVEL configuration optionDanConwayDev
Add proper log level configuration following standard approach: - CLI flag: --log-level <level> - Environment variable: NGIT_LOG_LEVEL - Default: info - Supports simple levels (error, warn, info, debug, trace) - Supports filter expressions (e.g., ngit_grasp=debug,actix_web=info) Configuration is now consistent across all four sources: 1. src/config.rs - Config struct with log_level field 2. docs/reference/configuration.md - Full documentation 3. nix/module.nix - NixOS module with logLevel option 4. .env.example - Example configuration file This replaces the previous RUST_LOG approach with proper integration into the ngit-grasp configuration system, enabling trace logging from CLI, environment variables, or NixOS configuration.
2026-01-21fix: use hex format for pubkey in NIP-11 documentDanConwayDev
The NIP-11 specification requires the pubkey field to be a 64-character hex string, but we were incorrectly using npub (bech32) format. Changes: - Add Config::relay_owner_pubkey_hex() method to get hex format - Update NIP-11 document to use hex format instead of npub - Update test to verify 64-char hex string instead of npub format Fixes nak relay command error: 'must be a hex string of 64 characters'
2026-01-21feat: add archive-grasp-services configuration optionDanConwayDev
Enables relay operators to backup/archive specific GRASP servers by domain. Includes configuration, validation, documentation, and integration tests.
2026-01-19fix: archive_read_only creates bare repos for archived announcementsDanConwayDev
Combined Accept and AcceptArchive match arms in builder.rs to ensure bare repositories are created for both cases. Previously AcceptArchive had duplicate code that didn't call ensure_bare_repository(). Also includes: - Config fix: effective_git_data_path() respects explicit paths with memory backend - TestRelay: Added git_data_path() and archive config support for testing - Integration tests for archive_read_only behavior
2026-01-19config: increase max_connections default from 2000 to 4096DanConwayDev
Increases connection limit across all configuration sources: - src/config.rs: default_value_t = 4096 - docs/reference/configuration.md: updated default and examples - nix/module.nix: maxConnections default = 4096 - .env.example: updated default and comment This allows the relay to handle more concurrent connections and reduces the likelihood of connection exhaustion under normal load. The previous limit of 2000 was too conservative for production deployments.
2026-01-14Add explicit rate limits and total connection limitDanConwayDev
- Make RateLimit explicit in relay builder (500 subs, 60 events/min) - Add NGIT_MAX_CONNECTIONS config option (default: 500) - Update all 4 config locations (src, nix, docs, .env.example) - Fix documentation error: filter limit 5000→500 - Document Phase 2 deferral decision (per-IP enforcement) Addresses primary DoS vector (connection exhaustion) with minimal code. Per-IP rate limiting deferred until abuse detected in production. Related: issue ff38 (git endpoint throttling - separate concern)
2026-01-12Change default port from 8080 to 7334 (NGIT on phone keypad)DanConwayDev
- Update default bind address in src/config.rs to 127.0.0.1:7334 - Update all four critical config sources per AGENTS.md: - src/config.rs (code default and tests) - .env.example (development template) - docs/reference/configuration.md (user documentation) - nix/module.nix (NixOS deployment) - Update all documentation examples and references: - README.md (with note about phone keypad mnemonic) - docs/how-to/*.md (deploy, prometheus-setup, test-compliance) - docs/explanation/*.md (architecture, comparison) - docs/learnings/grasp-audit.md Port 7334 spells NGIT on a phone keypad, making it memorable and project-specific. All tests pass (336 lib tests + 51 integration tests).
2026-01-12feat(config): add event blacklist to block all events from specific authorsDanConwayDev
Adds NGIT_EVENT_BLACKLIST option for blocking all events from specific npubs, taking precedence over all other validation to enable comprehensive moderation without affecting curation policy. Key features: - Simple npub-only format: <npub>,<npub>,... - Checked FIRST before any other validation (including repository blacklist) - Blocks ALL event types (announcements, state events, PRs, comments, etc.) - Events never reach relay storage or purgatory - Specific rejection reason for operator debugging Implementation: - Add EventBlacklistConfig struct with check() method - Add NGIT_EVENT_BLACKLIST config option and event_blacklist_config() method - Add config field to PolicyContext for policy access - Add check_event_blacklist() to Nip34WritePolicy - Check event blacklist first in admit_event() method (before any other validation) - 4 new unit tests covering all blacklist behavior Configuration synced across all four sources: - src/config.rs: Core implementation with EventBlacklistConfig - .env.example: Comprehensive documentation with examples - docs/reference/configuration.md: Complete reference documentation - nix/module.nix: NixOS module option with environment mapping README updates: - Add comprehensive "Curation & Moderation" section - Document repository whitelists (GRASP-01 and GRASP-05 modes) - Document repository and event blacklists with precedence order - Add configuration table for all curation/moderation settings - Provide real-world examples for different relay configurations Testing: - 4 new tests for event blacklist functionality - All 336 library tests passing - All 64 integration tests passing - All 38 filter support tests passing Verification: - Repository blacklist confirmed to apply to sync (uses same admit_event flow) - Sync events validated through process_event_static -> write_policy.admit_event Use cases: - Block spam/abusive users completely - Prevent malicious actors from submitting any events - Temporary blocks for investigation - Moderation without affecting whitelist curation policy
2026-01-12feat(config): add repository blacklist to block specific repos/npubs/identifiersDanConwayDev
Adds NGIT_REPOSITORY_BLACKLIST option for blocking repositories, taking precedence over all whitelists (archive and repository) to enable moderation without affecting curation policy. Key features: - Three blacklist formats: <npub>, <npub>/<identifier>, <identifier> - Blacklist checked first before any other validation - Overrides archive whitelist and repository whitelist - Specific rejection reasons based on match type (npub/identifier/both) - Not flagged in NIP-11 curation (operational, not policy) Implementation: - Add BlacklistConfig struct with check() method returning detailed reasons - Add NGIT_REPOSITORY_BLACKLIST config option and blacklist_config() method - Update validate_announcement() to check blacklist first with specific reasons - 12 new unit tests covering all blacklist behavior and precedence Configuration synced across all four sources: - src/config.rs: Core implementation with BlacklistConfig - .env.example: Comprehensive documentation with examples - docs/reference/configuration.md: Complete reference documentation - nix/module.nix: NixOS module option with environment mapping Testing: - 12 new tests for blacklist functionality (config + validation) - All 332 library tests passing - All 38 integration tests passing Use cases: - Block spam/malware repos by identifier - Block abusive users by npub - Block specific problematic repos by npub/identifier - Temporary blocks for investigation
2026-01-12refactor(config): validate eagerly at startup and remove Result from runtime ↵DanConwayDev
config methods Refactors configuration validation to fail fast on fatal errors at startup while gracefully handling recoverable issues (e.g., malformed whitelist entries). Changes: - Add Config::validate() for eager validation called immediately after load - Remove Result<> from archive_config() and repository_config() methods - WhitelistEntry::parse_whitelist() skips invalid entries with warnings - Validate relay_owner_nsec format in Config::validate() - Update all call sites to remove Result handling from config getters Benefits: - Fatal config errors (incompatible settings) fail at startup, not runtime - Recoverable errors (bad whitelist entries) logged as warnings and skipped - No Result handling scattered throughout runtime code after validation - Config methods safe to call without error handling after validate() Testing: - Add 7 new tests for validation edge cases and error handling - Total config tests: 40 (up from 33) - All 320 library tests passing Breaking change: Config users must call config.validate() after Config::load() to ensure configuration is valid. This is enforced in main.rs.
2026-01-12feat(config): add repository whitelist for curated GRASP-01 acceptanceDanConwayDev
Adds NGIT_REPOSITORY_WHITELIST option for curated relay operation that accepts only whitelisted repositories while maintaining GRASP-01 compliance (announcements must list the service). This differs from archive whitelist which enables GRASP-05 mode and doesn't require service listing. Key features: - Supports three whitelist formats: npub, npub/identifier, identifier - Enforces mutual exclusivity with archive read-only mode - Updates NIP-11 curation field when whitelist is enabled - Maintains GRASP-01 compliance (doesn't add GRASP-05 support) Configuration synced across all four sources: src/config.rs, docs/reference/configuration.md, nix/module.nix, and .env.example as required by AGENTS.md.
2026-01-12feat(grasp-05): add read-only mode with auto-enable for archive configsDanConwayDev
Implements NGIT_ARCHIVE_READ_ONLY configuration option that defaults to true when archive mode is enabled, allowing relays to operate as read-only syncs of archived repositories. Key changes: - Add NGIT_ARCHIVE_READ_ONLY config option (defaults to true if archive enabled) - NIP-11 advertises GRASP-05 support and includes curation field when read-only - Validation logic rejects non-whitelisted repos in read-only mode - Comprehensive tests for read-only behavior and defaults - Full documentation in config reference, .env.example, and NixOS module Read-only mode enables passive mirroring without being listed in announcements, useful for backup/archive operations while preventing accidental write acceptance.
2026-01-12feat(grasp-05): implement archive mode for backup/mirror operationDanConwayDev
Implements GRASP-05 specification for accepting repository announcements that don't list this relay, enabling archive, mirror, and backup use cases. Core Features: - Three whitelist formats: <npub>, <npub>/<identifier>, <identifier> - Archive-all mode for complete ecosystem mirrors - Fail-fast npub validation at startup - Read-only enforcement (archived repos reject pushes) - Full GRASP-02 sync (git data + Nostr events) - Dynamic archive status (no flags/metadata) Implementation: - Add ArchiveWhitelistEntry enum with Pubkey/Repository/Identifier variants - Add ArchiveConfig with validation and matching logic - Update AnnouncementResult to include AcceptArchive variant - Refactor validate_announcement() to return AnnouncementResult with archive check - Update AnnouncementPolicy with catch-all pattern for cleaner code - Wire archive config through builder and policy layers Configuration: - NGIT_ARCHIVE_ALL: Accept all announcements (⚠️ storage risk) - NGIT_ARCHIVE_WHITELIST: Comma-separated whitelist entries - Updated docs, .env.example, and nix/module.nix Testing: - 28 unit tests for config parsing and whitelist matching - 7 integration tests for archive mode validation - All 296 tests passing Validation Priority: 1. Lists our service → Accept (GRASP-01, read/write) 2. Is maintainer → AcceptMaintainer (multi-maintainer, read/write) 3. Matches archive config → AcceptArchive (GRASP-05, read-only) 4. None of above → Reject Security Considerations: - Archive-all mode has storage/bandwidth DoS risk - Identifier-only format matches any pubkey (use npub/identifier for high-value) - Invalid npubs cause startup failure (fail-fast) Documentation: - Concise explanation focused on rationale - Reference docs updated with all config options - README updated to reflect completed feature - Removed from roadmap, added to compliance section See docs/explanation/grasp-05-archive.md for details.
2026-01-11fix(config): trim whitespace from relay-owner-nsec CLI/env inputDanConwayDev
When relay_owner_nsec is provided via CLI argument or environment variable (e.g., read from a file by the NixOS module), trim any leading/trailing whitespace including newlines. This matches the behavior when reading from the .relay-owner.nsec file directly. Fixes issue where NixOS module reads nsec file with 'cat', which includes the trailing newline, making the nsec invalid when passed as a CLI argument. Also reverted the tr workaround in nix/module.nix since ngit-grasp now handles this correctly.
2026-01-10Implement relay naughty list featureDanConwayDev
Add naughty list tracking for relays with persistent infrastructure issues (DNS failures, TLS certificate errors, protocol violations) to reduce log noise and provide better visibility via metrics. Key features: - Classify errors into naughty (persistent) vs transient (temporary) - Track naughty relays with category, reason, and occurrence count - Log WARN on first naughty occurrence, DEBUG on repeats - Automatic expiration after 12 hours (configurable) - Prometheus metrics for monitoring naughty relays by category - Periodic cleanup task integrated with health checker Components added: - src/sync/naughty_list.rs: Core naughty list tracker with error classification - NaughtyListTracker integration in RelayHealthTracker - Connection error handling updates in sync manager - Naughty list metrics (total by category, detailed info per relay) - Config option for naughty_list_expiration_hours (default: 12) Closes DNS lookup failures and TLS certificate errors tracking issues.
2026-01-09chore: cargo fmtDanConwayDev
2026-01-09feat: Switch SyncManager to use two-tier RejectedEventsIndexDanConwayDev
Replaces the simple HashSet<EventId> with the sophisticated two-tier RejectedEventsIndex from PR1, enabling future immediate re-processing when maintainer dependencies resolve. ## Changes ### Config (src/config.rs) - Add `rejected_hot_cache_duration_secs` (default: 120 = 2 minutes) - Add `rejected_cold_index_expiry_secs` (default: 604800 = 7 days) - Both configurable via CLI flags or environment variables ### SyncManager (src/sync/mod.rs) **Type Change:** - Before: `Arc<RwLock<HashSet<EventId>>>` (simple event ID set) - After: `Arc<RejectedEventsIndex>` (two-tier storage) **Initialization:** - Pass config durations to RejectedEventsIndex::new() - Creates hot cache (2 min) + cold index (7 days) **Event Processing (process_event_static):** - Extract identifier from 'd' tag - Determine rejection reason from error message - Call `add_announcement()` with full event + metadata - Stores in both hot cache and cold index **Negentropy Sync (derive_relay_targets):** - Call `get_all_event_ids()` to get rejected IDs - Returns union of hot cache + cold index event IDs - Excludes from negentropy reconciliation **Event Loop (relay_connection):** - Use `contains()` method instead of direct HashSet access - Simpler API, same skip-rejected behavior ### RejectedEventsIndex (src/sync/rejected_index.rs) **New Method:** - `get_all_event_ids()`: Returns HashSet<EventId> from both tiers - Used for negentropy exclusion (replaces direct HashSet access) ### Tests Updated **test_rejected_events_index_tracks_announcements:** - Create RejectedEventsIndex with config durations - Add 'd' tag to test announcement - Use `add_announcement()` with full event - Verify both hot cache and cold index populated - Check lengths with `hot_cache_len()` and `cold_index_len()` **test_rejected_events_excluded_from_negentropy:** - Create RejectedEventsIndex instead of HashSet - Build full event with 'd' tag - Add to index with `add_announcement()` - Get IDs with `get_all_event_ids()` - Verify excluded from reconciliation ## Architecture ``` ┌─────────────────────────────────────────────────────────────┐ │ SyncManager │ │ │ │ rejected_events_index: Arc<RejectedEventsIndex> │ │ ├─ Hot Cache (2 min): Full events for re-processing │ │ └─ Cold Index (7 days): Metadata for dedup │ └─────────────────────────────────────────────────────────────┘ │ │ On rejection ▼ ┌─────────────────────────────────────────────────────────────┐ │ add_announcement(event, pubkey, identifier, reason) │ │ ├─ Store full event in hot cache │ │ └─ Store metadata in cold index │ └─────────────────────────────────────────────────────────────┘ │ │ On negentropy sync ▼ ┌─────────────────────────────────────────────────────────────┐ │ get_all_event_ids() → HashSet<EventId> │ │ ├─ Union of hot cache IDs │ │ └─ Union of cold index IDs │ └─────────────────────────────────────────────────────────────┘ ``` ## Benefits ### Immediate - **Better tracking**: Store rejection reason + metadata - **Configurable**: Tune cache/index durations per deployment - **Observable**: Separate hot/cold metrics (future PR4) ### Future (PR3) - **Immediate re-processing**: Get events from hot cache when valid - **No 24h delay**: Maintainer announcements accepted in <1 second - **Automatic recovery**: Hot cache for immediate, cold index for later ## Backward Compatibility **No breaking changes:** - Same rejection behavior (skip events in index) - Same negentropy exclusion (union with purgatory IDs) - Default config values match previous implicit behavior **Migration:** - Existing deployments continue working with defaults - Optional: Tune durations via new config flags ## Testing All tests passing: - ✅ 9 rejected_index tests (hot cache, cold index, two-tier) - ✅ 139 sync module tests (including updated integration tests) - ✅ 247 total library tests ## Next Steps **PR3: Add invalidation + immediate re-processing** - Invalidate cold index when owner announcement accepted - Get events from hot cache for re-processing - Recursive call to process_event_static - Integration tests for <1s maintainer acceptance **PR4: Add cleanup + metrics** - Hot cache cleanup task (every 60s) - Cold index cleanup task (daily) - Prometheus metrics for both tiers - Monitor hot cache hits vs misses ## Configuration Examples ```bash # Default (2 min hot cache, 7 day cold index) ngit-grasp # Longer hot cache for slow relays ngit-grasp --rejected-hot-cache-duration-secs 300 # Shorter cold index for memory-constrained systems ngit-grasp --rejected-cold-index-expiry-secs 86400 # Environment variables export NGIT_REJECTED_HOT_CACHE_DURATION_SECS=180 export NGIT_REJECTED_COLD_INDEX_EXPIRY_SECS=259200 ngit-grasp ``` Part of: Maintainer chain discovery fix See: work/SOLUTION-SUMMARY-V2.md for full design Previous: PR1 (rejected_index.rs implementation) Next: PR3 (invalidation + re-processing)
2026-01-09feat: replace owner-npub with relay-owner-nsec for persistent operator identityDanConwayDev
Replace the owner-npub configuration option with relay-owner-nsec to provide a persistent cryptographic identity for the relay operator. This addresses NIP-42 authentication requirements discovered during sync debugging. Motivation: - Some relays (e.g., relay.damus.io) require NIP-42 authentication for advanced features like NIP-77 negentropy sync - Previously used random ephemeral keys per connection, providing no persistent identity - Other relays can now recognize us by pubkey for reputation-based rate limiting - Ensures consistency between NIP-11 pubkey and authentication key Changes: - Config: relay_owner_nsec with auto-load/generate from .relay-owner.nsec - NIP-11: Pubkey derived from nsec instead of separate npub field - Sync: RelayConnection now uses operator keys for NIP-42 auth - Docs: Updated README, .env.example, and added .relay-owner.nsec to gitignore Key Features: - Auto-generates key on first run and saves to .relay-owner.nsec - Loads existing key from file on subsequent runs - Can override via CLI flag or environment variable - Enables reputation building across relay network - Future-ready for event signing and WoT calculations Testing: - 225/232 tests passing (7 pre-existing purgatory failures unrelated) - Verified key generation, loading, and NIP-11 derivation - Release build successful Related: work/sync-debug-analysis.md, work/relay-owner-nsec-implementation.md
2026-01-08fix: sync-bootstrap-relay-url scheme optionalDanConwayDev
2025-12-11fix: resolve all fmt and clippy warningsDanConwayDev
Main lib (src/): - Add #[allow(dead_code)] for build_info field (stored to prevent Prometheus unregistration) - Add #[allow(dead_code)] for first_seen field (reserved for future rate limiting) - Replace .or_insert_with(RelaySyncNeeds::default) with .or_default() - Replace manual div_ceil implementations with .div_ceil(100) Test code (tests/): - Replace .expect(&format!(...)) with .unwrap_or_else(|_| panic!(...)) - Remove needless borrows in fetch_metrics() calls - Add #[allow(dead_code)] and #[allow(unused_imports)] to test helpers module grasp-audit: - Apply cargo fmt to fix formatting
2025-12-11sync: test sync works without negentropy and add disable option in syncDanConwayDev
2025-12-11chore: remove unused sync config fieldsDanConwayDev
Remove 4 config fields that were defined but never used: - sync_startup_delay_secs - sync_reconnect_delay_secs - sync_reconnect_lookback_days - sync_startup_jitter_ms These fields were added during GRASP-02 planning but the implementation took a different approach (using hardcoded constants for quick reconnect windows and batch window via env var).
2025-12-11sync: add sync_base_backoff_secs config for better testingDanConwayDev
2025-12-11fix(sync): improve metrics recording and connection failure detectionDanConwayDev
Changes: - Fix connection attempt metrics: record success/failure based on actual connection result instead of pre-emptively recording failure - Add health tracker integration on connection failure: call record_failure() and record_health_state() in error path - Add connection verification in relay_connection.rs: wait 500ms after connect() then verify is_connected() to detect silent failures - Add configurable disconnect check interval via NGIT_SYNC_DISCONNECT_CHECK_INTERVAL_SECS env var - Update TestRelay with fast test settings: startup_delay=0, jitter=0, disconnect_check_interval=1s - Add debug output to metrics tests for investigation Note: Tests may still fail due to 5-second base backoff in health tracker. A follow-up task will add NGIT_SYNC_BASE_BACKOFF_SECS config parameter to allow faster test cycles. Related: metrics-wiring-plan.md Tasks 1 & 2
2025-12-05rename sunc_bootstrap_relay_urlDanConwayDev
2025-12-05fix basic sync testsDanConwayDev
2025-12-04feat(sync): Phase 5 - negentropy catchup (NIP-77)DanConwayDev
- Add NegentropyService for set reconciliation - Implement startup catchup with warm-up delay - Implement reconnect catchup (last 3 days) - Add daily catchup schedule with stagger
2025-12-04feat(sync): Phase 3 - resilience and health trackingDanConwayDev
- Add RelayHealthTracker with DashMap - Implement exponential backoff (5s -> 1h max) - Handle dead relays (24h failures -> daily retry) - Add startup jitter to prevent thundering herd - Add NGIT_SYNC_MAX_BACKOFF_SECS config
2025-12-04feat(sync): Phase 1 MVP - single relay proactive syncDanConwayDev
- Add src/sync/ module with SyncManager - Add NGIT_SYNC_RELAY_URL config option - Subscribe to kind 30617 on configured relay - Validate synced events through Nip34WritePolicy - Integration test with two TestRelay instances
2025-12-04add prometheus metricsDanConwayDev
2025-12-03improved settings cli flags > env vars > defaultsDanConwayDev
2025-12-01fix cargo clippy and fmt warningsDanConwayDev
2025-11-21feat: add database backend configuration optionsDanConwayDev
Add environment variable configuration for database backend selection: - Added DatabaseBackend enum (memory, nostrdb, lmdb) in src/config.rs - Updated relay builder to use configured backend in src/nostr/builder.rs - Added NGIT_DATABASE_BACKEND to .env.example with documentation - Updated docs/reference/configuration.md with backend comparison table NostrDB and LMDB backends prepared for future implementation when nostr-relay-builder adds support. Currently defaults to in-memory database with warning logs when persistent backends are selected.
2025-11-19fix some clippy fmt warningsDanConwayDev
2025-11-04feat: implement NIP-01 compliant Nostr relayDanConwayDev
- WebSocket-based relay using tokio-tungstenite - Full NIP-01 protocol support (EVENT, REQ, CLOSE) - Event validation (signature and ID) - In-memory event storage - Filter support (IDs, authors, kinds, since/until) - Configuration via environment variables - Nix flake for reproducible builds - Test automation script All 6 NIP-01 smoke tests passing (100%)