December 2025 Update
On behalf of the Stylus Sprint committee, Entropy is posting this December update.
Program Finances
- Total ARB disbursed to teams as of December 31st: 4,765,369 ARB (~53% of the 9M ARB budget)
- ARB disbursed in December: A total of 8 payments were processed by the Arbitrum Foundation, totaling 496K ARB. At an average price of $0.21 for ARB, this came out to ~$103,874.48 based on price at the time of transaction.
- A single payment for 176,667 ARB is being processed by the AF.
- 270K out of the 330K operating budget has been spent. As a reminder 30K was paid to Questbook up front. The remainder has been paid out to committee members each month.
Submitted Milestones
December was a slower month with the holidays. A total of 5 milestones were submitted.
Walnut: Enhanced Debugging Workflows and Tooling
- Milestone 7: Long-term support and (potential) merge (deliverables, tx link)
- The PR for the official merge of the Walnut new debugger into the Stylus SDK is available here: Add usertrace command and enhance replay with debugger options by djolertrk · Pull Request #370 · OffchainLabs/stylus-sdk-rs · GitHub
Arbos-Foundry
- Milestone 6: End-to-end testing and bug fixes (deliverables, tx link)
Moving Stylus: Move to Stylus compatible WASM compiler
- Milestone 5: SDK and Tooling (deliverables, tx link)
- This was a significant milestone in terms of completing the compiler core and adjacent tooling. Rather Labs completed key missing language features, improved runtime compatibility with EVM semantics, and extended the framework with several foundational modules.
- Compiler repository: GitHub - rather-labs/move-stylus-poc
- Developers and interest delegates are encouraged to watch the demo videos provided by Rather Labs here: MIlestone 5 - Google Drive
Trail of Bits: Add Stylus as a Solang compiler target
- Milestone 4: Add Stylus Documentation and tests to Solang (deliverables, payment processing)
- Trail of Bits tested two significant Solidity projects (Uniswap V2 and Multi Collateral Dai) and added a Stylus section to the Solang documentation.
- Their work appears in the main branch of our Solang fork at: GitHub - trail-of-forks/solang: Solidity Compiler for Solana and Polkadot
StylusFuzz: Advanced Property Testing for WASM Contracts
- Milestone 6: Skribe: Mixed Rust-Solidity Fuzz Testing (deliverables, tx link)
- Runtime Verification extended Skribe to support mixed Rust–Solidity fuzz testing, which now enables developers to integrate and test smart contracts written in both languages within a single project.
Terminated Project: MoreMarkets
On December 8th, MoreMarkets (formerly Nuffle Labs) announced that it was shutting down its earn account product, which was primarily focussed on providing yield opportunities for underutilized assets like XRP in DeFi.
Their original application/protocol aimed to enable restaking to EigenLayer with any token from any chain. However, when considering their application, the committee was primarily excited about the team member’s expertise and previous experience at the Near protocol. Given this we continued to monitor the growth and performance of MoreMarkets despite the pivot not presenting as clear of a need for Stylus. With the team winding down the earn product and transitioning to future endeavors, the committee felt it made sense at this time to formally end the grant.
No ARB was ever paid out to MoreMarkets and the entirety of their 460K ARB grant has been reclaimed.
Reworking of Scope/Milestones
With the price of ARB still at levels far below the initial grant scoping for many teams, the committee has continued conversations to address budget shortfalls.
- ArbOS-Foundry by Iosiro: The committee allocated additional ARB to this team back in early October, but due additional price declines and its high priority we have added another 100k ARB to the final 3 milestones.
- Syndicate: Adding 150K ARB evenly across all 6 milestones. While Syndicate has not officially submitted any milestones for review yet, they have completed work for milestones 1-3. MintVM has been rebranded to SyndDB, which relies on Stylus for TEE attestation verification. Stylus support has also already been added to Syndicate’s sequencing modules, which allows Stylus to be used for Rust-based decompression for calldata inspection.
Looking Forward: Extension of the Stylus Sprint
Of the original 26 teams that were accepted into the Stylus Sprint, 21 teams remain (3 withdrawn & 2 terminated). 6 teams have completed their original scopes of work:
- ThirdWeb
- Redstone
- Wakeup Labs (AssemblyScript Compiler)
- CoBuilders (GUI for the Cache Manger)
- Walnut
- Trail of Bits: Add Stylus as a Solang compiler target
As a reminder, Wakeup Labs and Walnut have had additional milestones added to their original scope so that their projects are more fully developed.
While several other teams were on track to finish by the Sprints’ deadline of January 27th, after speaking with some of the remaining teams before the holidays, it became clear that additional time was needed to finish important development milestones. As we mentioned last month, specific extensions were being considered, but after discussion, the committee felt the fairest approach was to extend the Sprint for all teams through February 28th, 2026.
Since the departure of Gustavo at the end of June, payments for committee members have remained at 4K ARB, so there are already reserved funds available to pay the committee members for their additional month of work.
Lastly, Entropy has scheduled a Demo Day call on Wednesday January 21st from 2-3 pm UTC for the completed projects to showcase their work to the DAO. A second, and if necessary third, Demo Day will be scheduled in late February or early March for the remaining teams.