Adriel Casellas (@adrielcasellas) 's Twitter Profile
Adriel Casellas

@adrielcasellas

AI Engineer @  👷‍♂️ Scala nut 🥜 Rustacean 🦀 Quant Dev 🔬

ID: 1475786209

linkhttps://www.linkedin.com/in/adriel-casellas-a4226274/ calendar_today01-06-2013 21:50:45

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221 Followers

425 Following

John A De Goes (@jdegoes) 's Twitter Profile Photo

First developer: "ZIO docs are bad." Second developer: "Have you read the Zionomicon?" First developer: "Who has time to read a 700 page book!!" 🤣

Adriel Casellas (@adrielcasellas) 's Twitter Profile Photo

For Scala devs disappointed with o1’s knowledge of ZIO 2.x, it looks like Deepseek is much more up to date. Would highly recommend it for Scala dev assist

Pierre Ricadat (@ghostdogpr) 's Twitter Profile Photo

I achieved an interesting performance improvement today by changing an opaque type from Int to java.lang.Integer. It may look counter-intuitive, but these IDs were used mostly by Maps or Sets. Map#get and Set#contains cause boxing and extra allocations on every call.

I achieved an interesting performance improvement today by changing an opaque type from Int to java.lang.Integer.

It may look counter-intuitive, but these IDs were used mostly by Maps or Sets. Map#get and Set#contains cause boxing and extra allocations on every call.
Adriel Casellas (@adrielcasellas) 's Twitter Profile Photo

If Scala has a million users, I’m one of them. If Scala has five users, I’m one of them. If Scala has one user, that one is me—probably stuck overthinking ZLayers. If Scala has no users, I finally gave up and switched to Rust.

Adriel Casellas (@adrielcasellas) 's Twitter Profile Photo

Recruiter: “My client is a little concerned about your job history, you hop around a bit too often” *two months after getting a new job* Recruiter: “Hey, looked through your profile, looks like you’d be a good fit for this role”

Adriel Casellas (@adrielcasellas) 's Twitter Profile Photo

Opeth fans sleep on Orchid; a massively underrated album. Standout tracks I suggest you revisit: The Apostle in Triumph, Twilight is my Robe

Opeth fans sleep on Orchid; a massively underrated album. Standout tracks I suggest you revisit: The Apostle in Triumph, Twilight is my Robe
Adriel Casellas (@adrielcasellas) 's Twitter Profile Photo

Having a wonderful time at my first (and final 😢) LambdaConf 2025 ! So many great talks so far. I very much enjoyed John A De Goes’s talk on the future of ZIO schema, and I would suggest anyone interested in contributing to check out the repo: github.com/zio/zio-blocks

Having a wonderful time at my first (and final 😢) <a href="/lambda_conf/">LambdaConf 2025</a> ! So many great talks so far. I very much enjoyed <a href="/jdegoes/">John A De Goes</a>’s talk on the future of ZIO schema, and I would suggest anyone interested in contributing to check out the repo: github.com/zio/zio-blocks
Adriel Casellas (@adrielcasellas) 's Twitter Profile Photo

Had the pleasure of attending Alexander Ioffe's talk at LambdaConf 2025 and he absolutely blew my mind with ExoQuery! Coming from a Quill power user, I was really impressed by the breadth and depth of features. Definitely check it out if you are a #kotlin dev