Mladen Milankovic

mmlado - walleteer. Air-gapped wallets that do not phone home.

Freelance engineer. Author of Keycard Pal, an air-gapped wallet for Status Keycard, and of the keycard-py and keycard-nim SDKs. Contributed two instructions to the Status Keycard JavaCard applet: GET CHALLENGE (in production) and an ECDH key-agreement instruction (merged, shipping in v4). Delivered two Rust RFP libraries for Logos spel.

Independent, open to work in the privacy space.

I believe sovereignty begins the moment someone realizes: you don't have to accept the default.

Building on Logos

• spel-admin-authority - Admin Authority library for Logos spel (RFP-001, won and delivered)
• spel-freeze-authority - Freeze Authority library for Logos spel (RFP-002, won and delivered)
• Upstream contributions to the Logos spel framework (merged and in review)
• Two Logos Lambda Prizes: Keycard NIP-46 Nostr signer (repo) and Shell dApp integration proof of concept (live demo)

Talks

How Cypherpunks, Technoanarchists, and Ethereum Build Post-State Futures

EthBelgrade 2025

Dev Tooling track

EthBelgrade 2024 - no recording (venue technical difficulties)

Smart Contract Development with Vyper

EthBelgrade 2023

Tehnički aspekti blokčejna

Serbian Academy of Sciences, 2022

Elsewhere

• GitHub
• LinkedIn
• Writing (mmlado.eth)
• Keycard Pal F-Droid repo
• Digital Self-Defense on YouTube: Serbian / Hungarian