🚀 Embit v0.8.1 is now released! This is a major security and stability upgrade to the core Bitcoin library that powers Specter DIY, Krux, and SeedSigner. Big step forward for the whole DIY Bitcoin hardware community. 👇 What is embit? Embit is a lightweight, pure Python Bitcoin library that runs on both CPython and MicroPython. It handles key derivation, PSBT signing, Descriptors, Miniscript, Taproot, and much more. It serves as the foundation for: - Specter DIY - Krux - SeedSigner Key improvements in v0.8.1:- Enhanced Taproot support (Key Spend signatures in PSBTs) - Major fixes in the Descriptor parser (tr(), sh(wsh()), etc.) - Miniscript improvements - Stronger security — no more bundled native binaries (reduced supply-chain risk) - Professional release process with SBOM, CodeQL, and more For Specter DIY this brings:- More stable handling of complex wallets (Multisig + Taproot + Miniscript) - Better error messages - Stronger overall firmware security We’ll integrate v0.8.1 into the next firmware releases. Krux and SeedSigner also benefit directly from this update — improved stability, better Taproot functionality, and a more secure base for all DIY builders in the ecosystem. Huge thanks to everyone involved! Image for Tweet 5 Special thanks to @mike_tolkachev (Mike) for leading this release and all the hard work! 🙏 → Full Release Notes:

GitHub

Release v0.8.1 · diybitcoinhardware/embit

Added Add support for Taproot key spend signature in PSBT - PSBT_IN_TAP_KEY_SIG. Add miniscript boolean literal support for 0 and 1. Add GitHub Ac...

Specter does not have a shitcoin version.

Specter Desktop is only Bitcoin only Companion App that you can use as localhost just in the browser.

In this video we are going to speak about what changed in the new Specter DIY v1.10.3 Firmware update.

🔒 𝗦𝗽𝗲𝗰𝘁𝗲𝗿-𝗗𝗜𝗬 𝘃𝟭.𝟭𝟬.𝟯 𝗶𝘀 𝗵𝗲𝗿𝗲. The headline feature: full transaction transparency when signing — Version, Locktime, sequences and RBF status. Something most hardware wallets still don't show you. Plus better scanning and expanded multisig support. 👉 github.com/cryptoadvance/specter-diy/releases 𝗡𝗼 𝗺𝗼𝗿𝗲 𝗯𝗹𝗶𝗻𝗱 𝘀𝗶𝗴𝗻𝗶𝗻𝗴. Transaction Version, Locktime and input sequences (incl. RBF status) are now shown when signing. Particularly useful for timelock recovery flows. Most other hardware wallets still hide these fields. Thanks to Oren for this one. 𝗠𝟯𝗬 𝘀𝗰𝗮𝗻𝗻𝗲𝗿 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝗵𝗮𝘀 𝗹𝗮𝗻𝗱𝗲𝗱. Smoother scanning experience — no reprogramming necessary, settings work out of the box. 𝗧𝗵𝗲 𝗚𝗠𝟲𝟱 𝘀𝗰𝗮𝗻𝗻𝗲𝗿 𝗷𝘂𝘀𝘁 𝗴𝗼𝘁 𝗮 𝘀𝗲𝗿𝗶𝗼𝘂𝘀 𝘂𝗽𝗴𝗿𝗮𝗱𝗲. Faster scanning, support for more QR codes, and a fix for newer GM65 units reading CompactSeedQR. 𝗠𝘂𝗹𝘁𝗶𝘀𝗶𝗴 𝘀𝗲𝘁𝘂𝗽𝘀, 𝗻𝗼𝘄 𝘀𝗺𝗮𝗿𝘁𝗲𝗿. Expanded descriptor detection — more formats recognized automatically when importing. 𝗔 𝗳𝗲𝘄 𝗺𝗼𝗿𝗲 𝗽𝗼𝗹𝗶𝘀𝗵 𝗶𝘁𝗲𝗺𝘀: New "About" screen. Button text changed: "Enter BIP-39 password" → "Enter passphrase" (correct terminology). 𝗢𝗻𝗲 𝗶𝗺𝗽𝗼𝗿𝘁𝗮𝗻𝘁 𝗻𝗼𝘁𝗲: 𝘁𝗵𝗶𝘀 𝗶𝘀 𝗮 𝗺𝗮𝗻𝗱𝗮𝘁𝗼𝗿𝘆 𝘂𝗽𝗴𝗿𝗮𝗱𝗲. We're rotating the signing keys (Ben removed, k9ert added) and shipping an updated bootloader with the new key set. Skip this release and your device gets stranded on v1.9.0 — no further SD-card upgrades, only JTAG re-flashing. 𝗥𝗲𝗹𝗲𝗮𝘀𝗲 & 𝗳𝘂𝗹𝗹 𝗻𝗼𝘁𝗲𝘀: 👉 github.com/cryptoadvance/specter-diy/releases Feedback welcome via GitHub issues. Thanks to everyone who contributed and tested.

Nobody needs to know that you own a bitcoin hardware Wallet.

Today is Proof of Keys Day! 🎉 17 years ago, the first Bitcoin block was created Today, call on the community and new investors to take your Bitcoin off the exchanges and put it into cold storage. It's also a good opportunity to check if your Bitcoin security setup is healthy

🪛Makers & tinkerers—where you at? 🔧 A Specter DIY fan wants a super-slim Specter Shield Lite. 👀 He'll pay 1M Sats (~ 1037$) for a at least 10% slimmer Specter. 🔥 Build the slimmest by the 21. Januar 2026 & claim the cash! 👇 📃Rules: - Submit proof (photo/video) of your Specter Shield Lite by 21. Jan 2026 via this X post (attached). - At least 10% slimmer than current (26mm) -> max 23.4mm - same length/width ≤ 133 x 66mm - Slimmest Specter can be sold for 1M sats ✅ Allowed is: - removing components from the STM32 Board - don't use shield lite pcb or edit it - editing the size of the smartcard - Scanner Modules: GM65S, GM65, M3Y -> Other Scanner Modules are only accepted, as long they are supported in the firmware - new scanner position ⛔ Not allowed: - No case - functions like touchscreen, powering, SD-Card, Smartcard, QR-Scanner are not working properly 💡 Here you can find information about the current Specter Shield Lite: specter.solutions/build-guide Original Tweet:

X (formerly Twitter)

Specter (@SpecterDIY) on X

🪛Makers & tinkerers—where you at? 🔧 A @SpecterDIY fan wants a super-slim Specter Shield Lite. 👀 He'll pay 1M Sats (~ 1037$) for a ...

Darko one of our association members had a Masterclass at the LuganoPlanB Forum in Lugano. Here he showed how to set up a Multi Signatur Wallet. Of course with the Specter DIY as one of the cosigners.

Happy to welcome two new members to our Specter Association. Darko, who ran a couple of Specter workshops at major Bitcoin conferences. And @Surface a huge Specter fan who's been printing Specter cases since the early days.

Checkout up from minute 35. Schnuartz about the specter Assoziation. View quoted note →

🇩🇪 This Sunday 20:00 CET @Schnuartz | ClavaStack is going to speak about the Specter Association and the history in the @EINUNDZWANZIG Stammtisch View quoted note →

🚀 The Specter Association is LIVE! 🎉 Nine passionate Specter enthusiasts have united to advance Specter DIY & Specter Desktop. New leadership with @Schnuartz | ClavaStack as our President! Huge thanks to @Swan Bitcoin for empowering the community and transfering the project to us. 🌟 Meet the new Specter Association Board of directors! Led by President @Schnuartz | ClavaStack, running a Specter DIY online shop, and Vice President Mike, who helped a lot with development. Rounding out the board: CryptoGuide (shield lite board) and Yan (co-founder of Swan Bitcoin). Our early founders, Moritz Wietersheim and Stepan Snigirev stepped back from leadership roles and transitioned to honorary members. @npub183f6...vqsc, @polto and k9ert, have all played key roles in advancing the Specter Project. Our united focus now shifts to expanding Specter's accessibility, streamlining contributor onboarding, creating beginner-friendly documentation, and enhancing UX—while prioritizing the project's security-first design.🔒 Explore our updated website, where you’ll find everything you need to build or purchase a Specter Hardware Wallet or install Specter Desktop. It also includes more details about our assocation members. 👉specter.solutions