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NexusShell is Vadik’s project desk, showcasing software, research, and experiments across developer tools, payments, and onchain systems. Vadik describes his work as building with agents and developing ways to verify their results. The site offers project walkthroughs, source code, and development notes.

Synrail is a developer tool for checking evidence submitted by coding agents. Its example shows how verification can catch a failing test that a matching line of code would miss, then confirm a repair. RHOOK explores onchain research through replaying execution after a single changed input while keeping the checkpoint and historical transaction order fixed. OneLink Pay investigates spending permissions with limits and receipts, including a payment example that demonstrates a per-charge check. TuringVault, built for the Mantle Turing Test 2026, presents a workflow for proposing actions, challenging proposals, and recording decisions before execution.

The site also shares interactive illustrations, recorded demonstrations, implementation notes, and links to project repositories. TuringVault is described as an operator-funded demonstration with no public deposits.