Welcome!

Hey! I'm João Marcos, a 23-year-old Rustacean from Brazil 🇧🇷.

Check out my blog at marcos.unsafe.rs.

Busy with work and unfortunately not spending enough time with open-source atm.

My projects

The ones people actually use:

Ouch (2.0k ⭐️)	🦀	Easiest tool for (de)compressing stuff via CLI. Shipped to Arch, Manjaro, and more.
Permissions	🦀	Small crate with 34k+ downloads to check for file permissions.
cargo-sweep	🦀	I'm now the maintainer of cargo-sweep, a target/ cleaning tool with around 280k downloads.

The cool ones (IMO):

Dawctl	🦀	Deathadder controller reverse-engineered from Razer's proprietary and closed-source software.
Fs-tree	🦀	A path Trie with an API focused on filesystem operations.
pasoqa3	🦀	Parser And Summarizer Of Quake Arena 3 log files.
Dotin	🦀	(WIP) A simple dotfiles manager that is a superset of stow.

Experiments on building a programming language:

1. lox 🦀 - First hand-written Lexer, Parser, AST, and basic interpreter.
2. cocoa 🦀 - Now using convenient Lexer and Parser libs, more interpreter experiments.
3. sushi 🦀 - Retrying Cocoa, but with good error reporting.
4. mini-c 🦀 - My first tiny LLVM-IR compiler! It "works"! (kinda)

More Rust experiment projects:

• Marquito 🦀 - An HTTP/1.1 server hand-written in Rust that handles 90k+ requests per second.
• balu 🦀 - A single-thread and blocking HTTP server.

C

• projeto-itp - An interactive CLI relational database (Portuguese README).
• loadingnewyear - My first ever project, draws a colored year progress in the terminal.

C++

• icpc-training - Some of the advanced algorithms I studied for ICPC.

Misc

• dotfiles - Personal dotfiles.

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Random facts about me

1. I have 7 cats, in Brazil we say that cats have 7 lives instead of 9. 🐱 (idk why)
2. My dream is to work on a cool open source text editor or programming language in the future.
3. If my name were to be translated, I'd be called "John Marks Pear Tree Heifer". 🧐 (wtf)
4. Aaaand I'd probably beat your ass at table tennis 🏓.

Games I like

Some programming/engineering games I recommend:

1. Factorio (factory building).
2. Logic World (circuit building).
3. MHRD (build a computer).
4. Exapunks (robot scripting).
5. Shenzhen I/O (assembly).
6. TIS-100 (very primitive assembly).

All games are Turing complete, but 3-6 all have script size limitations.

Contact

If you have anything to talk about, contact me 😎.

Telegram: @marcospb19
Matrix: @marcospb19:matrix.org
Rust-lang's zulip: "João Marcos"
E-mail: marcospb19@hotmail.com