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m0wer
m0wer@stacker.news
npub1w3va...4c5c
JoinMarket NG
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m0wer 3 weeks ago
@calle has it ever been considered to enable Touring complete (or closer to) spending condition scripts on cashu mints? As in smart contracts that could enable ZKPs for spending, allowing for something like Tornado Cash but on Bitcoin. #cashu
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m0wer 3 weeks ago
There's someone flooding all JoinMarket makers with !orderbook requests. Making them run out of storage with several GBs of logs per hour and also filling their CPU cycles. It does so through direct onion connections (last time was through directories) and with a bunch of nicks in parallel. I've implemented Tor level DDoS protection through a dynamic PoW requirement (0 in normal cases) in a branch of jm-ng as an experiment:
GitHub
feat: Add Tor PoW DoS defense for hidden services by m0wer · Pull Request #108 · m0wer/joinmarket-ng
JoinMarket (Bitcoin CoinJoin) modern alternative implementation - feat: Add Tor PoW DoS defense for hidden services by m0wer · Pull Request #108 ...
 It only works with the alpha release of Tor, but an expected release might come soon. I didn't know about this feature from Tor, but it's really neat. Some more info here:
Tor Project | Onion service DoS guidelines
Defend yourself against tracking and surveillance. Circumvent censorship. | Onion service DoS guidelines
 #JoinMarketNG #JoinMarket #CoinJoin
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m0wer 3 weeks ago
About the problem of deleting notes on Nostr, here's an idea: use a delegated key that rotates each month and expires. Once expired, request deletion from all your notes from all relays and then share the private key so that anyone can post bullshit with it, including yourself. You get plausible deniability for anything posted before last month and really encourage relays to delete all shit signed with that expired delegated key or they will get spammed to death. This might be a stupid idea. Please go ahead and let me know why.
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m0wer 3 weeks ago
Fixed my zap receiving ability by switching to Coinos. Will leave the fight of getting my self hosted lnbits working fast enough for later.
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m0wer 0 months ago
JoinMarket NG 0.11.1 is out! - Cold storage fidelity bond support for makers - Reproducible Docker builds!!! - BIP39 passphrase support - Dual offers (abs and rel simultaneously) for makers - Lots of fixes and UX improvements (thanks beta testers!)
GitHub
Release 0.11.0 · m0wer/joinmarket-ng
Added Fidelity Bond Tool ASCII Signature Format Support: The fidelity_bond_tool.py script now correctly verifies certificate signatures in both b...
GitHub
Release 0.11.1 · m0wer/joinmarket-ng
Fixed Descriptor Wallet Gap Limit Bug: Fixed a critical bug where wallets with more than 1000 addresses would show 0 balance in jm-wallet info de...
 #JoinMarketNG #JoinMarket #CoinJoin #Privacy
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m0wer 1 month ago
Hi @npub1vadc...nuu7 ! Any way I can reach out to you for some questions about JoinMarket development? Tried email and telegram but I think you're not active there anymore.
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m0wer 1 month ago
JoinMarket NG 0.10.0 release is out! Lots of news and improvements. Here are the highlights: - Descriptor wallet (syncs in seconds). No private keys stored in the Bitcoin Node. - `--select-utxos` a TUI for `jm-taker coinjoin` and `jm-wallet send`. - External notifications compatible with every service (Gotify, Telegram, ...). Specially useful for makers. Uses apprise. - Configuration file for clear and persistent settings.
GitHub
Release 0.10.0 · m0wer/joinmarket-ng
Security Sensitive data protection: Refactored configuration models to use Pydantic's SecretStr type for sensitive fields (mnemonics, passphrases,...
 image #JoinMarket #CoinJoin
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m0wer 1 month ago
I've updated
JoinMarket Fidelity Bond Simulator
 to include some optimistic ROI figures. With the assumptions of 2,000 JoinMarket CoinJoins monthly of an average size of 2M sats. Then, estimate how often each offer is picked and see the profitability divided by the bond size (not value). As if it were some kind of savings account. And only considering the locked coins in the bond, not the liquidity in the mixdepths. It's really interesting to see that the optimal is definitely not being the largest bond! Since we assume 8 makers per round, it's “easy” to be chosen there often even without a large bond. You can see that the “smartest” bonds are 4.4 BTC (number 1 in ROI) and 2 BTC (number 3 in ROI). Have fun with the tool! image #JoinMarket #CoinJoin
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m0wer 1 month ago
# JoinMarket NG 0.9.0 Release Summary ## Major Features Descriptor Wallet Backend - New default backend using Bitcoin Core's descriptor wallets - Sync time reduced from ~90s to ~1s via listunspent instead of scantxoutset - One-time setup with automatic descriptor import - Smart scan for mainnet: initial import scans ~1 year, full rescan runs in background Orderbook Watcher Enhancements - Direct maker reachability tracking via Tor health checks - directly_reachable field in orderbook API responses - Maker feature extraction from handshakes for monitoring Operator Notifications - Push notifications via Apprise (100+ services: Telegram, Discord, email, etc.) - Privacy-aware with configurable data inclusion - Per-event toggles, fire-and-forget design - Integrated across all components ## Configuration Changes Defaults Modified - Backend: full_node → descriptor_wallet - Fee rate fallback: 10 sat/vB → 1 sat/vB - Counterparty count: 3 → 10 makers - Broadcast policy: RANDOM_PEER → MULTIPLE_PEERS (3 random makers) Fee Estimation - Added --block-target (1-1008 blocks) and --fee-rate options - Support for sub-1 sat/vB rates (float precision) - Default: 3-block estimation with full node, 1 sat/vB fallback with Neutrino ## Critical Fixes Transaction Handling - Fixed maker multi-UTXO support (multiple !sig messages) - Fixed maker fee calculation bug causing "Change output value too low" errors - offer.txfee is total contribution, not per-input/output multiplier Orderbook Watcher Stability - Fixed aggressive offer pruning removing valid long-running makers - Fixed peerlist handling treating partial updates as complete replacements - Fixed concurrent read race conditions in TCP connections - Philosophy shift: "show offers when in doubt" vs aggressive cleanup Timeout Handling - Fixed JoinMarket NG directory compatibility (120s timeout for peerlist features) - Reduced Neutrino pending transaction timeout: 48h → 10h ## Performance & UX - Estimated fees displayed before confirmation - Final transaction summary with exact counts and fees - Early backend validation before wallet sync - Reduced logging verbosity for routine operations - Improved sweep coinjoin logging clarity ## Backend Improvements - Unified broadcast behavior across full node and Neutrino - Self-fallback now allowed for RANDOM_PEER and MULTIPLE_PEERS policies - Enhanced Neutrino UTXO detection with incremental rescans - Block-based verification for Neutrino (no mempool access)
GitHub
Release 0.9.0 · m0wer/joinmarket-ng
Added Descriptor Wallet Backend now exposed via CLI: Users can now select --backend descriptor_wallet for fast UTXO tracking. Available in all CL...
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m0wer 1 month ago
Lidify: A self-hosted, on-demand audio streaming platform with discovery algo
GitHub
GitHub - Chevron7Locked/kima-hub: Kima Hub is built for music lovers who want the convenience of streaming services without sacrificing ownership of their library. Point it at your music collection, and Kima handles the rest: artist discovery, personalized playlists, podcast subscriptions, and seamless integration with tools you already use like Lidarr and Audiobookshelf.
Kima Hub is built for music lovers who want the convenience of streaming services without sacrificing ownership of their library. Point it at your ...
 Lidify is built for music lovers who want the convenience of streaming services without sacrificing ownership of their library. Point it at your music collection, and Lidify handles the rest: artist discovery, personalized playlists, podcast subscriptions, and seamless integration with tools you already use like Lidarr and Audiobookshelf.
Stacker News
Lidify: A self-hosted, on-demand audio streaming platform with discovery algo \ stacker news
Lidify is built for music lovers who want the convenience of streaming services without sacrificing ownership of their library. Point it at your mu...
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m0wer 1 month ago
Create privacy blockers across multiple calendars
Gist
Create privacy blockers across multiple calendars
Create privacy blockers across multiple calendars. GitHub Gist: instantly share code, notes, and snippets.
 Calendar Blockers - Create privacy blockers across multiple calendars This script automatically creates "blocker" events on target calendars for every event found in source calendars. The blocker events only show a generic title (e.g., "private" or "busy") without revealing actual event details, helping maintain privacy when sharing calendars. Use Case: - Share work calendar with personal calendar without revealing details - Create busy blocks on shared calendars while keeping event info private - Sync availability across multiple calendar systems Features: - Configurable blocker title - Optional padding time before/after events - Supports recurring events - Dry-run mode for testing - Works with vdirsyncer or similar calendar sync tools
Stacker News
Create privacy blockers across multiple calendars \ stacker news
Calendar Blockers - Create privacy blockers across multiple calendars This script automatically creates "blocker" events on target calendars for ev...
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