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Wedgie DIY Hardware Wallet
The open-source DIY wallet combines three off-the-shelf components and starts at $57 for an unassembled kit.
Happy Friday, October 16, 2026.
Austin Griffith launches the Wedgie DIY hardware wallet. Glamsterdam-ready client releases are now available for Hoodi. Lighter opens its EVM public devnet. And Devcon announces the Devcon8 community hubs.
Sponsored by Ambire
Ambire is now on iOS and Android, with the same features as the browser extension wallet, including hardware wallet and Safe multisig support. Use limited invite code ambireambire to get in. Download at ambire.com/download.
Wedgie DIY Hardware Wallet
Ethereum tinkerer Austin Griffith introduced Wedgie, a do-it-yourself hardware wallet built from an RP2040 Pico, a Waveshare Pico-LCD-1.3 screen hat, and a secure chip. The parts fit together without soldering, and users can print the case themselves. Wedgie can sign Safe multisig transactions. The private key stays in the secure chip and a signature requires pressing the green button. The hardware, case, firmware, and website are MIT-licensed, allowing users to build, fork, and sell their own versions.
The project is now selling unassembled kits from $57 and assembled units from $67 shipped. The kits come with the microcontroller board, LCD screen, secure chip, and 3D printed case. Orders are currently limited to the United States, with shipping expected within a week. Users can also pay in USDC on Ethereum, Base, and Arbitrum.
Glamsterdam Hoodi Client Releases
Glamsterdam-ready client releases are now available for the Hoodi testnet, which is scheduled to activate the upgrade on October 26, 2026, at 17:42:48 UTC, epoch 132,352 and slot 4,235,264. The gas limit on Hoodi will also rise to 200M at the same epoch. Client releases are available from Lodestar, Teku, Nimbus, Besu, Ethrex, and Nethermind, with remaining clients to release compatible versions in the coming days.
Glamsterdam brings enshrined proposer-builder separation (EIP-7732), block-level access lists (EIP-7928), and gas-pricing changes that account for state creation and access costs. Node operators must update both execution and consensus clients before activation. Hoodi will mark the third and final testnet to undergo the upgrade ahead of an activation on Ethereum mainnet later this year.
Lighter Opens EVM Public Devnet
Lighter, the application-specific ZK rollup on Ethereum focused on perps, opened the public devnet for Lighter EVM, an EVM-equivalent rollup built with Axiom and powered by OpenVM. The system runs alongside Lighter Core, giving smart contracts synchronous access to Core accounts, balances, positions, orders and market data, while asynchronous calls can place, modify or cancel orders between the systems.
Both rollups settle jointly to Ethereum, with OpenVM aggregation combining their zero-knowledge proofs into one proof verified on Ethereum. While developer documentation is available, access to the devnet is being provided to developers in cohorts. The devnet supports standard Ethereum JSON-RPC tooling, including Foundry, Hardhat, Viem and Ethers, and targets one-second blocks.
Misc News
Catch up with Ethereal news weekly #43. Materkel announces a lightweight Ethereum indexing node for apps. David outlines the $AZTEC fees and burn mechanism. Devcon announces the Devcon8 community hubs. And Francesco outlines AI-assisted formal verification progress on Ethereum.
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