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# RustFest Barcelona `impl days` ###### tags: `rustfest` ### Go to [barcelona.rustfest.eu/about_impl_days](https://barcelona.rustfest.eu/about_impl_days) and click the link "What to hack on" to land on this document. ### More food options: <https://barcelona.rustfest.eu/food/> Rooms @ UPC VS217 - Welcome room VS218 VS203 ~~VS208~~ ## Taxi pooling for the airport If you are leaving for the airport today, add your name and flight time to this list so that we can share a taxi: * Amanieu, 20:20 ## Proposed projects and contact person Please add your own! Don't forget your name and room ## Proposed Projects Monday * Inline assembler RFC * Talk to Amanieu in room 218 * If you have examples of inline asm that you are currently using on nightly, please add them [here](https://github.com/bjorn3/inline_asm_catalogue/) so we can take them into account when designing the `asm!` syntax. * Databases rust: [Diesel](https://github.com/diesel-rs/diesel) and [Wundergraph](https://github.com/weiznich/wundergraph) (Georg Semmler/weiznich) * Documentation, Features, Just talk * List of [diesel issues with instructions what to do](https://github.com/diesel-rs/diesel/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22) * List of [wundergraph issues what to do](https://github.com/weiznich/wundergraph/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22) * Sitting in VS218 now * [`probe-rs`](https://github.com/probe-rs/probe-rs), the embedded Rust debugging toolset * Come talk to @Yatekii, @jschievink and @rnestler in room 217 * [`Rubble`](https://github.com/jonas-schievink/rubble), a pure-Rust BLE stack for embedded devices (@jschievink in room 217) * List of [good first issues](https://github.com/jonas-schievink/rubble/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22) to work on * People interested: @chris_zen * Work on [Rustlings](https://github.com/rust-lang/rustlings) and [RustBridge](https://rustbridge.com)! We have a separate doc [here](https://hackmd.io/@mokou/rkDgBMNoH). * We have some nice and easy tasks to get a good first contribution to the Rust project in * Come talk to Marisa or rvidal in Room 208! * Create an MVP/bootstrap [`linfa`](https://github.com/LukeMathWalker/linfa), a Rust framework for classical Machine Learning: * Write Python bindings using `PyO3` for the K-means algorithm implemented during the "ML introduction to ndarray" workshop ([material](https://github.com/LukeMathWalker/ndarray-koans)) ✔️ * Benchmark the implementation against `scikit-learn`'s K-means ✔️ * Expose the model for predictions using a web-server (REST Json with `tide`? gRPC with `tonic`?) * Benchmark the microservice against the standard `Flask` + `scikit-learn` ML microservice Starting point: ![](https://i.imgur.com/kBpsoDY.png) Ask for Luca/[`@LukeMathWalker`](https://github.com/LukeMathWalker)/[`@algo_luca`](https://twitter.com/algo_luca) in room V207 if you want to join :heart: * Stabilize [Pyo3](https://github.com/PyO3/pyo3) - the python-rust bindings. [@gilescope](http://twitter.com/gilescope) room 203 * (I'm assuming specialisation isn't going to be on stable rustc soon? - please tell me if not the case!!!) * unfortunately doesn't look like it :( - @jschievink * Is anyone working on this? Which room are you in? * Nobody's working on it right now, Giles is in room 203 mentoring some rustc work but can show you what needs doing * Contributions to the Rust project's infrastructure and bots * Want to do something to improve Rust's infra? Ask Pietro in room V217 * [Guzzle](https://github.com/apolitical/guzzle/) * Guzzle is a custom derive macro for parsing streams of meta data (key => value) into Rust structs. * It's now feature complete 🎉 but I could use help stabalising the API, improving the documentation, and making the code nicer. * Contact [@gisleburt](https://twitter.com/gisleburt) - I'm in S208, feel free to say hi! * [what](https://github.com/imsnif/what) - A network bandwidth monitor (similar to nethogs). Needs a mac/windows port, some packaging and maybe some love. <3 Talk to [@Aram](https://twitter.com/im_snif) (room 217) * Not in 218 anymore? - 217, sorry! * [vega-lite](https://github.com/davidB/vega_lite_3.rs) - a vega lite bindings to produce graphs - needs more examples and doc, quite hard to use now. Talk to [@FrancoisMockers](https://twitter.com/FrancoisMockers/) / [@ThomAub](https://twitter.com/ThomAub) * **RustFest Netherlands** -- want to help out with the organizations? Come chat to Dirkjan or Wouter or email netherlands@rustfest.eu! We're currently doing bi-weekly meetings and there will be lots of different things to do: talking to sponsors, helping out with talk selection, staffing registration desk, etc. * [gcp-pubsub](https://github.com/tehAnswer/gcp-pubsub): a HTTP client for Google's PubSub API. Needs help with a few issues. Check the repo for more info. Maintener is in room 218, last row, DAMN **black** t-shirt. * [Implement missing endpoints to create snapshots](https://github.com/tehAnswer/gcp-pubsub/issues/12) * [Add test cases for Client creation](https://github.com/tehAnswer/gcp-pubsub/issues/10) * [Add auto-renewal token strategies](https://github.com/tehAnswer/gcp-pubsub/issues/11) * **_~Beginner friendly~_** * Not in the back row anymore? * I am in 218, ask for Sergio. :joy: * Crab hacking group [@Nercury](https://twitter.com/nercury), room 218 * Try out `stm32g030` microcontroller on a custom board that is inside a 3D-printed crab. [Introduction to crab hardware (crabware?) and how to get started](https://nercury.github.io/rust/embedded/hack-the-crab/2019/11/11/rust-embedded-hack-the-crab.html) * Investigating stm32g030 HAL (device is not supported) * Investigate `stm32g0` support for probe-rs * Learn about hardware basics * There are spare crabs * Still in room 217? Room 218! * Entry level/beginner tasks/projects? * Happy to help mentor someone through their first rustc PR [@gilescope](http://twitter.com/gilescope) room 203 * Happy to help anybody with beginner-to-intermediate doubts/roadblocks. [@_rvidal](https://twitter/_rvidal), room 208 * Embark has all our maintainers around in room 208 if you want to contribute to our repos (https://embark.dev) * [clippy](https://github.com/rust-lang/rust-clippy) * implement some beginner friendly lints. Join us at room 208 * [Write up an "awesome-rust-testing"](https://hackmd.io/rmwsf13uTaeYaLpL4yno8A) *Room 217* * **STATUS:** copy-pasting stuff together, looking for folks with experience and suggestings * best practices * mocking libs * matcher libs etc * Finish [an implementation](https://github.com/sitegui/space-efficient-quantile) of a space-efficient quantile algorithm. Calculate your medians (with a bounded max error) more efficient than never before! The code is inspired by [this paper](http://infolab.stanford.edu/~datar/courses/cs361a/papers/quantiles.pdf) and it needs a good refactoring (it uses way too many `unsafe` blocks). Ask for Guilherme Souza [/sitegui](https://github.com/sitegui/) * [libtock-rs](https://github.com/tock/libtock-rs) Let's try to implement an MVP Future runtime. Room 208, * [nushell](https://github.com/nushell/nushell) Various tasks * Thomas (room 218, [mastodon](https://mastodon.technology/@hartmann), [email](thomas.o.hartmann@gmail.com)) is working on improvements to the `from-(c|t|s)sv` commands * [roguerust](https://github.com/Etenil/roguerust) * Implement an old-school terminal-only dungeon crawler * Uses ncurses (but also works on Windows) * **Noob-friendly!!!** not much knowledge of rust and 3rd party libs needed * room 217 at the front * [(Web-)Framework-Agnostic "Boilerplate Code" remover](https://github.com/AlisCode/db_api) (create REST APIs in 10 minutes using Diesel + any web framework) * Review the current design * Find a cool name for the project * Implement a backend for any currently unsupported Web Framework (Warp, Gotham, Tide?) * Ask for @aliscode / Olivier Pinon (Room VS217) * [Tari Protocol](https://github.com/tari-project/tari) MimbleWimble-based blockchain protocol * Various good first issues in the cryptography library and transaction protocols * Room 217 and [@philipr_za](https://twitter.com/philipr_za) * Local dokku musl build which publish binaries to dokku-server (MacOS) * https://github.com/arve0/dokku-local-rust-musl-build-macos * https://www.andrew-thorburn.com/cross-compiling-a-simple-rust-web-app/ * https://github.com/dokku/dokku/blob/master/docs/deployment/methods/images.md#deploying-an-image-from-ci * https://timryan.org/2018/07/27/cross-compiling-linux-binaries-from-macos.html * [cargo-aoc](https://github.com/gobanos/cargo-aoc) An helper for Advent of code in rust. Grégory Obanos, room 217 * WASM/WASI/Native benchmark with [wabench](https://github.com/dunnock/wabench) * [More tests](https://github.com/dunnock/wabench/blob/master/src/tests.rs) * Use [criterion](https://docs.rs/criterion/0.3.0/criterion/) * idea: take [textplots](https://docs.rs/textplots/0.4.1/textplots/) or [tui-rs](https://github.com/fdehau/tui-rs) and turn it into a CLI tool for piping textual data into it and get nice graphs out of it (@payload VS217) * Work on [Aoide](https://gitlab.com/uklotzde/aoide-rs), a local HTTP/REST service for managing and exploring music collections. As seen in [Mixxx](https://www.mixxx.org) dj software. [Ferran](https://twitter.com/ferranpujolca) * [rustfmt](https://github.com/rust-lang/rustfmt/) * [Issue #3492](https://github.com/rust-lang/rustfmt/issues/3492) in Room 218 * Mail WG (Pad: https://cryptpad.open-communication.net/code/#/2/code/edit/MU9I2jFgMNGzHkUkOrU+6l6S/) * [sled](https://github.com/spacejam/sled) lock-free high performance transactional key value store w/ [spacejam](https://github.com/sadisticsystems) * [Git Repository Manager](https://github.com/theredfish/git-repo-manager) * If you want to discover a terminal based tool for managing / jumping to your git repositories * Great to learn Rust, embedded sqlite with Diesel and (power)shell scripts as wrappers * I will create issues today, but feel free to open yours * Room 218 (see you tomorrow!) if you're interested : Julian / theredfish * compiling [net2](https://github.com/rust-lang-nursery/net2-rs) to WASI * net2 is used quite widely and WASI already got some networking stack implementations, I have a hard time trying compiling it to wasi. If anyone got some experience with that would appreciate help [dunnock](https://github.com/rust-lang-nursery/net2-rs) [Twitter](https://twitter.com/maxsparr0w) room 207 ## Proposed Projects Tuesday * Htsget Rust implementation: Bringing Genomics/Bioinformatics to the web: * Implementation: https://github.com/brainstorm/htsget-aws https://github.com/brainstorm/htsget-indexer * Where to find me: (Twitter: [@braincode](https://twitter.com/braincode), Github: [@brainstorm](https://github.com/brainstorm), Room VX S217 second last row). * Involving: Parquet-rs, Rusoto, AWS Athena, bit-level DNA sequence indexing. * Paper: https://academic.oup.com/bioinformatics/article/35/1/119/5040320 * Human readable spec: https://samtools.github.io/hts-specs/htsget.html * OpenAPI v3 spec: https://github.com/samtools/hts-specs/blob/master/pub/htsget-openapi.yaml * [dhall-rust](https://github.com/Nadrieril/dhall-rust): Rust bindings for the [dhall](https://dhall-lang.org/) configuration/programming language. It's got some good first issues. Talk to @Nadrieril in room 217, second row second from the right. * Create an MVP/bootstrap [`linfa`](https://github.com/LukeMathWalker/linfa), a Rust framework for classical Machine Learning: * ~~Write Python bindings using `PyO3` for the K-means algorithm implemented during the "ML introduction to ndarray" workshop ([material](https://github.com/LukeMathWalker/ndarray-koans))~~ ✔️ * ~~Benchmark the implementation against `scikit-learn`'s K-means~~ ✔️ * ~~Expose the model for predictions using a web-server (gRPC with `tonic`)~~ ✔️ * ~~Benchmark the microservice against the standard gRPC + `scikit-learn` ML microservice~~ ✔️ * Benchmark the implementation on multiple datasets Ask for Luca/[`@LukeMathWalker`](https://github.com/LukeMathWalker)/[`@algo_luca`](https://twitter.com/algo_luca) in room V207 if you want to join :heart: * ndarray - Currently in Room 217 - couldn't find Luke & others today * [issue #655](https://github.com/rust-ndarray/ndarray/issues/655) * Luca: I am in the third row, second seat from the left (looking at the whiteboard) - come to chat :grin: * Inline assembly RFC * Continuing from yesterday, talk to Amanieu in room 217. * [(Web-)Framework-Agnostic "Boilerplate Code" remover](https://github.com/AlisCode/db_api) (create REST APIs in 10 minutes using Diesel + any web framework) * Review the current design * Find a cool name for the project * Implement a backend for any currently unsupported Web Framework (Warp, Gotham, Tide?) * Ask for @aliscode / Olivier Pinon (Room VS217) * Non blocking ring buffer for audio applications. * Design proposal: [crossbeam-ring-buffer-proposal](https://github.com/chris-zen/crossbeam-ring-buffer-proposal) * Contact @chris_zen at room 217 * Beginner/Intermediate Project: Implement Probabilistic Finite Automata in Rust * AKA explain interior mutability to a Rust newbie ... * contact @parkellipsen (Room VX S218) * :question: Cross-compilation with Cargo * I'm trying to crosscompile a project for indows and macos, currently I'm having troubles, If some expert with cross-compilation could help me I'll appreciate the help. * Currently on room 217, last row, position 2 from the left (Ask for Iago. I'll update if I move) * :question: Executing a Future * I'm trying to implement library for asynchronous methods calling to avoid borrow-checker restrictions. Code is in https://github.com/milyin/async-call . Now I'm stuck because don't completely understand how to execute a future (Tasks?). Any help is appreciated. Room 210, right from door, table along the wall, green sweater * :thought_balloon: Guzzle requires better error messages when compilation fails. Does anyone have experience with proc_macros / Custom Derive? - [@gisleburt](https://twitter.com/gisleburt) (217) ## Done * Add a way to configure the migrations directory in the Diesel framework from `diesel.toml` (not in the proposed projects) [see PR](https://github.com/diesel-rs/diesel/pull/2179) - With the help of Georg Semmler * Create an MVP/bootstrap [`linfa`](https://github.com/LukeMathWalker/linfa), a Rust framework for classical Machine Learning: * Write Python bindings using `PyO3` for the K-means algorithm implemented during the "ML introduction to ndarray" workshop ([material](https://github.com/LukeMathWalker/ndarray-koans)) ✔️ * Benchmark the implementation against `scikit-learn`'s K-means ✔️ ![](https://i.imgur.com/Kqx0x3i.png) ![](https://i.imgur.com/2gpSHwa.png) * [🚀 async-std 1.0! 🎉](https://twitter.com/asyncrs/status/1193939046252367872) * Ported [Askama](https://github.com/djc/askama) to [nom 5](https://github.com/djc/askama/commit/40811eeba7e379f82e66b95867159479b48520c9) and its [non-macro combinators](https://github.com/djc/askama/commit/8d704a4923c79fe405b1b403e6868960456298cc) * Created crate [`t9`](https://crates.io/crates/t9) which allows one to create port numbers from words and vice versa. * Small PR to fix a panic in rubble demos when the logging buffer gets full. [See PR here](https://github.com/jonas-schievink/rubble/pull/90) * Progressed on the development of a RADIO hal for the nrf52840, finding out why I was not able to receive packets and how much should I refactor the interface to fix the problem. [A quick-dirty POC can be seen here](https://github.com/chris-zen/mdp-link-rs/tree/radio-esb) * Various fixes and impro**b**ements to [probe-rs](https://github.com/probe-rs/probe-rs/) and [`cargo flash`](https://github.com/probe-rs/probe-rs/tree/master/cargo-flash) * Small [fix to rustdoc](https://github.com/rust-lang/rust/pull/66298) * Added a PR for a new [Clippy-Lint](https://github.com/rust-lang/rust-clippy/pull/4806) * review and explanation for master ci failure very welcome. We are in S218 at the back :) * Ported [what](https://github.com/imsnif/what) to MacOS * Opened a [PR](https://github.com/nushell/nushell/pull/916) to Nushell to change the behavior of the `--headerless` flag for `from-csv`, `from-tsv`, and `from-ssv` * Started a PR for [Implementing FromStr for the enum Edition](https://github.com/rust-analyzer/rust-analyzer/pull/2217) for [rust-analyzer](https://github.com/rust-analyzer/rust-analyzer) * Wrote a basic (safe and unsafe) PFA implementation: https://gitlab.com/ellipsenpark/vom.rs * Wrote examples for [vega_lite_3.rs](https://github.com/davidB/vega_lite_3.rs), and a way to load data directly from a `ndarray` instead of a `Vec` * Added square-wave oscillator to Ruffbox: https://github.com/the-drunk-coder/ruffbox * Released Rustlings 2.0: https://write.as/mokou/rustlings-2-0-and-human-centered-versioning * [PR on rustup](https://github.com/rust-lang/rustup/pull/2126) adding `rustup toolchain install ... --allow-downgrade` in case you want to add components to your nightly toolchain which are only available on an older nightly

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