Harbor is a new ecash wallet for desktop, designed for privacy from the ground up.
🤖 Rust backend & frontend
🧅 Tor by default
🪙 Supports multiple mints (Fedimint + Cashu)
Devs @Paul and @Carman give @DETERMINISTIC OPTIMISM 🌞 the lowdown in BR097.
Bitcoin.Review
_@bitcoin.review
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A Podcast and Newsletter review of Bitcoin Software updates and related topics with NVK and guests.
🚀 BR097 - Cove Wallet, Harbor, ecash, Sparrow, Liana, Bull Bitcoin, JoinMarket, Hardware Wallets, Coinbase Breach, BitLocker Vulnerability, Lightning Phoenixd, LSP Legality + MORE ft. @Praveen Perera , @Carman , @Paul & @DETERMINISTIC OPTIMISM 🌞
🎧 Cove Wallet v0.5.1 is nearing App Store approval! Praveen shares insights on Cove Wallet's simplicity and focus on on-chain transactions, highlighting how its Rust-based architecture and BDK build work to ensure a secure and seamless user experience.
➡️ Fountain:
➡️ Spotify:
➡️ Amazon:
➡️ Apple:
➡️ YouTube:
Shownotes:
➡️ Website:
➡️ Substack:

Fountain
Bitcoin.Review Podcast with NVK & Guests • BR097 - Cove Wallet, Harbor, ecash, Sparrow, Liana, Bull Bitcoin, JoinMarket, Hardware Wallets, Coinbase Breach, BitLocker Vulnerability, Lightning Phoenixd, LSP Legality + MORE ft. Praveen, Ben, Paul • Listen on Fountain
I’m joined by guests Praveen Perera, Future Paul & Ben Carman to go through the list.Bitcoin • Software Releases & Project Updates (00:01:29) C...
Spotify
BR097 - Cove Wallet, Harbor, ecash, Sparrow, Liana, Bull Bitcoin, JoinMarket, Hardware Wallets, Coinbase Breach, BitLocker Vulnerability, Lightning Phoenixd, LSP Legality + MORE ft. Praveen, Ben, Paul
Bitcoin.Review Podcast with NVK & Guests · Episode
BR097 - Cove Wallet, Harbor, ecash, Sparrow, Liana, Bull Bitcoin, JoinMarket, Hardware Wallets, Coinbase Breach, BitLocker Vulnerability, Lightning Phoenixd, LSP Legality + MORE ft. Praveen, Ben, Paul | Bitcoin.Review Podcast with NVK & Guests Episode on Amazon Music
I’m joined by guests Praveen Perera, Future Paul & Ben Carman to go through the list.Bitcoin • Software Releases & Project Updates (00:01:29) C...
Apple Podcasts
BR097 - Cove Wallet, Harbor, ecash, Sparrow, Liana, Bull Bitcoin, JoinMarket, Hardware Wallets, Coinbase Breach, BitLocker Vulnerability, Lightning Phoenixd, LSP Legality + MORE ft. Praveen, Ben, Paul
Podcast Episode · Bitcoin.Review Podcast with NVK & Guests · 05/06/2025 · 1h 13m

🎙Bitcoin.Review Podcast
Bitcoin Review Podcast BR097 - Cove Wallet, Harbor, ecash, Sparrow, Liana, Bull Bitcoin, JoinMarket, Hardware Wallets, Coinbase Breach, BitLocker Vulnerability, Lightning Phoenixd, LSP Legality + MORE ft. Praveen, Ben, Paul
I’m joined by guests Praveen Perera, Future Paul & Ben Carman to go through the list.

BR097 - Cove Wallet, Harbor, ecash, Sparrow, Liana, Bull Bitcoin, JoinMarket, Hardware Wallets, Coinbase Breach, BitLocker Vulnerability, Lightning Phoenixd, LSP Legality + MORE ft. Praveen, Ben, Paul
I’m joined by guests Praveen Perera, Future Paul & Ben Carman to go through the list.
Can we make hardware wallet ↔️ desktop wallet comms even more secure?
Ephemeral handshakes, QR signing, and verifying sender identity - @DETERMINISTIC OPTIMISM 🌞 , @craigraw & @Rob Hamilton discuss progress and possibilities in BR096.
In the latest edition of Sparrow dot review, @DETERMINISTIC OPTIMISM 🌞 puts his feature requests to @craigraw :
➕ Total display on send
🔁 UTXO migration with timing randomization
🔐 Key Teleport for remote key transfer
Want features? Ask the devs! [BR096]
“Herd immunity” in #Bitcoin node security 🛡️
Even if you don’t upgrade to patch vulnerabilities (like recent CVE-2024-52919), you are afforded protection when other nodes do.
@craigraw , @DETERMINISTIC OPTIMISM 🌞 , @Rob Hamilton and Odell discuss node vulnerabilities and attacker incentives in BR096.
Should Sparrow bring indexing in-house? 🛠️
@DETERMINISTIC OPTIMISM 🌞 and @craigraw discuss trade-offs of relying on Bitcoin Core vs. building local indexers.
Electrum server rewrites are notoriously hard (and often abandoned).
Full context in BR096.
Dev testing? Choose your chain:
Testnet = chaotic & adversarial
Signet = predictable & controlled
@Rob Hamilton walks through mining behavior, forks, and block timing.
[BR096]
Bitcoiners - it’s time to return to #nostr
@DETERMINISTIC OPTIMISM 🌞 and Odell dissect why many Bitcoiners bailed on nostr after a disappointing first touch, and how UX improvements can win back users. [BR096]
🐦 Cormorant is not just a bird.
It’s the internal library Sparrow uses to connect with your Bitcoin Core node.
@Rob Hamilton and @craigraw break it down in BR096.
Nostr MLS is here!
A HUGE step forward. 💪
But before you start using #nostr for sensitive Bitcoin actions, take warning from @craigraw - encrypted or not, nostr messages live forever on servers you don’t control.
(Oh, and not to mention future post-quantum threats!)
[BR096]
CTV + CHECKCONTRACTVERIFY could be the chosen path for #Bitcoin, over OP_VAULT.
@Rob Hamilton gives an overview of how it unlocks recurring payments, conditional spending, and more. [BR096]
Bitcoin covenant proposals keep getting better.
OP_VAULT’s author now favors OP_CCV, while the CTV bug bounty remains unclaimed after 5 years.
@DETERMINISTIC OPTIMISM 🌞 , @craigraw & @Rob Hamilton make the case for time-tested ideas in BR096.
🟠 What’s the best wallet for SATSCARD right now?
• Nunchuk ✅
• Bitcoin Keeper ✅
• Cove (coming soon)
• Sparrow (needs USB NFC device)
@DETERMINISTIC OPTIMISM 🌞 , @Rob Hamilton & @craigraw discuss TAPSIGNER wallet compatibility, and note desktop hardware limitations, in BR096.
🚨 CVE-2025-43707: Critical bug in rust-miniscript caused crashes when compiling certain threshold descriptors (e.g., 3-of-3 with mixed conditions).
No funds lost.
Caught by Wizardsardine.
@Rob Hamilton walks us through it in BR096.
Version 2.6.0 of @Wasabi Wallet adds BIP158 block filters, and now syncs via BIP158 without a backend indexer.
A big move for privacy-focused users.
@DETERMINISTIC OPTIMISM 🌞 , @craigraw , @ODELL and @Rob Hamilton discuss the update in BR096.
Version 0.4.0 of Cove Wallet adds:
✅ Key expression imports
✅ CSV export w/ fiat values (📊 tax reporting)
✅ Krux + TAPSIGNER support
The clean, minimal on-chain wallet is gaining traction (and features!) 🚀
@DETERMINISTIC OPTIMISM 🌞 , @Rob Hamilton & Odell discuss the project in BR096.
Is #Bitcoin ossified?
Odell, @DETERMINISTIC OPTIMISM 🌞 , @Rob Hamilton and @craigraw debate whether Bitcoin’s ossification is real, or if consensus changes like CTV still have a future, in BR096.
Does the OP_RETURN debate indicate that soft fork momentum could be dead in #bitcoin?
Odell, @DETERMINISTIC OPTIMISM 🌞 , @craigraw & @Rob Hamilton discuss whether any current soft fork proposals will succeed (and what the Libbitcoin kernel could unlock). [BR096]
Miners already use custom versions of Core.
So why not offer more?
@DETERMINISTIC OPTIMISM 🌞 suggests releasing more distros - binaries with different options - to de-escalate tensions and empower users. [BR096]
What happens if a soft fork (such as CTV) were activated by 50% of the hash rate, but rejected by the rest?
@Rob Hamilton explains how this would play out, ultimately resulting in a chain split. [BR096]