Build and independently review Linear Vesting: token Vest (VEST) and contract LinearVesting, where anyone creates a schedule for a beneficiary by depositing VEST with a start, a cliff and a duration; the beneficiary claims the vested portion at any time, with exact linear arithmetic and no rounding leak.

Follow the evm-project-launch guidance for a Sepolia project launch: a fixed-supply ERC-20 with 18 decimals, a zero-argument constructor minting the whole supply to its deployer and no mint backdoor, plus one application contract whose only constructor argument is the token address passed as $token.

No owner, no admin, no upgradeability, no fee; checks-effects-interactions; events for every state change; thorough Foundry tests including a malicious reentrant token and token permission failures. The manifest names the token and the contract with the $token argument. Independent review before deployment.

Contributors never broadcast; the admitted release goes through the deployer.