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+# W3F Maintenance Grant Proposal
+
+- **Project Code Name:** `wasm-opt` for Rust Maintenance
+- **Team Name:** Common Orbit LLC
+- **Payment Address:** (Ethereum DAI) 0x2de31E52E24Df0588C64B27657D4F75e5462adEf
+
+
+## Project Overview :page_facing_up:
+
+This is a followup to the [`wasm-opt` for Rust grant][wafr],
+which [completed successfully][wafrc] on November 11.
+
+[wafr]: https://github.com/w3f/Grants-Program/pull/1070
+[wafrc]: https://github.com/w3f/Grant-Milestone-Delivery/pull/611
+
+
+
+### Overview
+
+`wasm-opt` for Rust is a project to create Rust bindings to [Binaryen's
+`wasm-opt`][`wasm-opt`] tool. It allows creators of WebAssemly toolchains
+written in Rust to directly optimize their WebAssembly output instead of
+calling a 3rd-party non-Rust binary.
+
+[`wasm-opt`]: https://github.com/WebAssembly/binaryen
+
+It has been integrated into
+
+- Ink!'s [`cargo-contract`](https://github.com/paritytech/cargo-contract/pull/766)
+- Substrate's [`wasm-builder`](https://github.com/paritytech/substrate/pull/12280#issuecomment-1295079049)
+- Stellar's [Soroban CLI](https://github.com/stellar/soroban-cli/pull/236)
+
+This grant will primarily provide funding to update the `wasm-opt` crate
+following new releases of Binaryen, after which we will also upgrade
+`cargo-contract` and `wasm-builder`.
+
+We will also fix some outstanding issues that were out of scope for the previous
+grant, and respond to new bug reports and feature requests as they arrive.
+
+This project should continue to be supported because it is part of the Substrate
+and Ink! toolchains; the underlying Binaryen code receives approximately six new
+releases yearly; and it will take effort to maintain the `wasm-opt` bindings as
+the Binaryen code changes.
+
+
+### Maintenance list
+
+Please provide a list of the repo(s) that need maintenance and further development:
+
+- https://github.com/brson/wasm-opt-rs
+
+
+## Team :busts_in_silhouette:
+
+### Team members
+
+- **Team lead:** [Brian Anderson](https://github.com/brson)
+- **Team member:** [Aimee Zhu](https://github.com/aimeedeer)
+
+### Contact
+
+- **Contact Name:** Brian Anderson
+- **Contact Email:** andersrb@gmail.com
+- **Website:** https://brson.github.io
+
+### Legal Structure
+
+- **Registered Address:** 16192 Coastal Highway, Lewes, Delaware 19958
+- **Registered Legal Entity:** Common Orbit LLC
+
+### Team's experience
+
+The team lead is one of the original authors of the Rust programming language,
+with 12 years of Rust experience.
+They have performed Rust work for Mozilla, Reddit, PingCAP, Solana, MobileCoin, Parity, Nervos, and the Web3 Foundation.
+Both team members are maintainers of the [Rust in Blockchain](https://rustinblockchain.org/) newsletter.
+
+The team has previously completed the [`wasm-opt` for Rust][wafr] grant under the same legal entity.
+
+
+### Team Code Repos
+
+- https://github.com/brson/wasm-opt-rs
+- https://github.com/brson
+- https://github.com/aimeedeer
+
+### Team LinkedIn Profiles (if available)
+
+N/A
+
+## Development Status :open_book:
+
+The project is functionally complete
+and is expected to continue in maintenance-mode.
+Its development was documented in a [blog post](https://brson.github.io/2022/10/26/creating-wasm-opt-rust-bindings-with-cxx).
+
+Progress is tracked on the [issue tracker](https://github.com/brson/wasm-opt-rs/issues).
+
+
+## Maintenance Responsibilities :nut_and_bolt:
+
+The primary need for a maintenance grant is to update the crate
+following new releases of Binaryen.
+
+In both 2021 and 2022 there were six releases of Binaryen.
+We already have experience with one upgrade that required approximately 10 hours of work.
+
+Note that there has been a new release of Binaryen since the completion of the
+previous grant. Upgrading to that release will be performed under this
+maintenance grant.
+
+Our responsibilities:
+
+- Update and publish new versions of the `wasm-opt` crate when new versions of
+  Binaryen are released.
+- Submit PRs to upgrade `wasm-opt` in `cargo-contract` and `wasm-builder`
+  when new versions are published.
+- Fix reported bugs if possible and within budget.
+- Implement minor feature requests if disirable and within budget.
+
+Issues we want to fix:
+
+- [Fix Unicode paths on Windows](https://github.com/brson/wasm-opt-rs/issues/40).
+  This is the major outstanding bug, but it is a bug in upstream Binaryen.
+  The maintainers of that project are open to patches fixing it.
+  It is a major task, perhaps 20+ hours.
+- [Unable to delete build-time symlink on Windows](https://github.com/brson/wasm-opt-rs/issues/116).
+  This has been reported by the maintainer of a substrate chain.
+  It requires investigation and possible upstream work in the `cxx` crate to fix.
+- [Minor issues collected in milestone "M3"](https://github.com/brson/wasm-opt-rs/milestone/2).
+
+
+### Overview
+
+- **Start Date:** 2022/12/01
+- **Sprint/Period Duration:** 4 weeks
+- **Total Duration:** 1 year
+- **Full-Time Equivalent (FTE):**  0.1
+- **Max budget per sprint/period:** 6000 USD
+- **Hourly rate:** 300 USD
+
+We expect this project to require light maintenance,
+that most months the full budget will not be required,
+that some months may require no work.
+The first few months will likely have above-average
+activity as we resolve outstanding issues.
+
+The monthly budget is calculated based on the following:
+
+- 10 hours to upgrade Binaryen
+- 300 USD / hour
+- x2 for unforseen obstacles
+
+This implies that a particularly difficult upgrade could exceed the monthly budget.
+In such a case the work would spill over across multiple months,
+and we might forego other maintenance work.
+
+
+## Future Plans
+
+We intend to upgrade the `wasm-opt` crate following new releases of Binaryen
+for as long as the project remains funded.
+
+We expect minor bug reports and feature requests,
+but do not intend to make major changes to the project,
+or introduce major new features.
+
+We expect to continue to be involved in the Substrate / Ink! ecosystems, and to
+make additional grant proposals related to WebAssembly, Ink!, and Substrate in
+the future.
+
+
+## Additional Information :heavy_plus_sign:
+
+**How did you hear about the Maintenance Grants Program?** personal recommendation