Withdraw ₳243,478 for MLabs Core Tool Maintenance & Enhancement: Plutarch

This treasury withdrawal funds **MLabs** **Core Tool Maintenance & Enhancement: Plutarch** which will provide the following services: This proposal seeks funding for the ongoing annual maintenance and feature enhancement of Plutarch, a production-grade eDSL in Haskell for creating Cardano smart contracts. As a core tool widely adopted within the ecosystem, Plutarch requires consistent upkeep. Funding covers maintenance (bug fixes, compatibility updates for hardforks) and new feature implementation based on community needs (e.g., via GitHub issues). This ensures Plutarch remains resilient, powerful, and up-to-date, supporting developers and the ecosystem. This Treasury Withdrawal is submitted by Intersect on behalf of the vendor. The following sections; Abstract, Motivation, Rationale and Vendor Profile have been sourced from the approved proposal submitted by the Vendor as part of the Intersect budget process. This treasury withdrawal funds one of 39 proposals to give effect to the approved budget info action for ₳275,269,340, administered by Intersect via gov_action1u9x73kwufaxa70lfy59g4ynwyrcsaxdcd0gxzzmh67s9fxq4j8hqqk2phgh. The information provided herein is intended to fulfill the spirit of the constitutional requirement for a treasury withdrawal info action by also providing the details of the proposed solution, alignment to the budget, and amount to be withdrawn from the Cardano Treasury.

This proposal aims to solve the following problem: As a core production-grade tool for Cardano smart contracts, Plutarch requires consistent upkeep and enhancements to align with network growth and upcoming hardforks. This proposal addresses the need for dedicated funding to maintain Plutarch's resilience, add features, and ensure ongoing compatibility, supporting developers and strengthening the ecosystem. Without dedicated funding, this essential tool risks becoming outdated, hindering developer productivity.

### Project Solution This proposal ensures Plutarch remains robust, up-to-date, and supported, benefiting Cardano developers and dApp projects who rely on it. The value is a more stable, efficient development environment, fostering innovation. The ROI includes increased developer productivity, enhanced dApp quality, and overall ecosystem health through maintained core infrastructure. Plutarch's wide adoption demonstrates its value. ### Vendor Profile MLabs LTD is the primary developer and maintainer of Cardano.nix. Our team possesses deep expertise in Nix, Cardano infrastructure deployment, and maintaining complex build systems, evidenced by the successful delivery and maintenance of Cardano.nix and its use by key ecosystem entities. ### Contract Management A written off-chain Legal Contract will be created between the Vendor and the Cardano Development Holdings (CDH), as mandated by the constitution, and will be administered by Intersect. This will include details of the project delivery schedule and dispute resolution. ### Project Delivery All milestones, acceptance criteria, payment amounts and expected delivery dates will be agreed between the Vendor and Intersect, acting on behalf of the CDH. The vendor will deliver according to the agreed-upon project schedule within the Legal Contract, of which the necessary information will be made public via the budget management platform via transaction metadata. Defined by the milestones within a Legal Contract, the vendor will submit and attest milestone acceptance to the community, Intersect or 3rd Party Assurer. Project progress will be monitored via Intersect's delivery assurance function which will be communicated to the community. Acceptance of the above work is expected to be supported by a 3rd Party Assurer, who will be responsible for reviewing and signing off the work completed at each project milestone against the corresponding milestone deliverables detailed within the Legal Contract. This work is funded from a portion of this treasury withdrawal. ### Budget Management Tooling To administrate treasury funds on-chain, Intersect will utilize the treasury management smart contract framework developed by Sundae Labs. The smart contracts have been [extensively tested](https://github.com/SundaeSwap-finance/treasury-contracts/tree/main/offchain/tests) including audits from TxPipe and MLabs. Examples of the usage of these contracts can be seen across mainnet described across Intersect authored [Blog 1](https://www.intersectmbo.org/news/smart-contract-mainnet-demo-a-step-toward-on-chain-treasury-withdrawals), [Blog 2](https://www.intersectmbo.org/news/smart-contract-mainnet-demo-day-two-update) and [Blog 3](https://www.intersectmbo.org/news/smart-contract-mainnet-demo-day-three-update). Final mainnet validation test can be seen via the Disburse action within transaction: 0f591dc544ae14102dbb4a74d5311a6acffc1772b163d8b7a9656b9525950b17 With the confirmed treasury reserve contract address being: stake17xzc8pt7fgf0lc0x7eq6z7z6puhsxmzktna7dluahrj6g6ghh5qjr #### Specifics Intersect will utilize a single Treasury Reserve Smart Contract (TRSC), with many Project-Specific Smart Contracts (PSSC), managed by Intersect. Intersect's management consists of three 'admin' and two Intersect 'leadership' roles. An Oversight Committee consisting of five external, independent third-party entities will provide checks and balances on Intersect, and safeguard against errors and unilateral control. The administration of both TRSC and PSSCs will be managed by Intersect, with external oversight on certain actions from the Oversight Committee. The Oversight Committee consists of Sundae Labs, Cardano Foundation, Dquadrant, Xerberus and NMKR. Their role is to independently verify key administrative actions using on-chain logic, ensuring accuracy and consistency without exercising discretion over governance decisions. For all details on Intersect's configuration please see the **[Smart Contract Guide](https://docs.intersectmbo.org/cardano-facilitation-services/cardano-budget/intersect-administration-services/smart-contracts-as-part-of-our-administration)** on the knowledgebase. The high level permissions are as follows: - TRSC Fund and PSSC Modify - Two of the three Intersect admins, two of the five trusted entities and one of the two Intersect leadership sign-off must authorize - TRSC Disperse - Two of three Intersect admins, three of five trusted entities and two of two Intersect leadership sign-off must authorize - TRSC Pause and Resume - Two of three Intersect admins, and one of two Intersect leadership sign-off must authorize - TRSC Sweep - One of three Intersect admins, and one of two Intersect leadership sign-off must authorize - TRSC Reorganize - Two of three Intersect admins and three of five trusted entities must authorize #### Processes Upon enactment of this governance action, funding for this project will be directed into the TRSC's stake account. All instances of TRSC and PSSC can not be staked with a SPO and will be delegated to the auto-abstain predefined DRep. From here funds will be withdrawn into a UTxO remaining at the TRSC. When the Legal contract is prepared and the vendor is ready, funding for this project will be transferred using the Fund action to a PSSC. All milestones will be outlined within the metadata. A dashboard will be available for the community to audit the TRSC or PSSC and track metrics related to this withdrawn ada as well as being immutably verifiable on chain. The subsections; Contract Management, Project Delivery, and Budget Management Tooling described above cover the constitutional requirements specified in Article IV section 4 and 5.