Alex Savelyev

Software Engineer

Hi. I’m Alex, an engineer interested in DX, growth, architecture, photography, design and much more. I enjoy experiments, new technologies and building things. These days, it’s mostly about React, Next.js, Node.js, and TypeScript.

Inspired by people like you - passionate and curious creators. Hope you’ll find some of my experiences interesting as well.

Blog

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Apr 28, 2026

A home for my story

For the first time, I carried thoughts that had nowhere to land. The search for a home for my articles led me not just to yet another platform, but to the idea of my own blog - built on top of the AT Protocol.

Apr 22, 2026

Facets as a Formatting Engine

Formatting is an important tool for emphasizing your point. We use it to highlight key parts of our work every day, including when developing services. One interesting example is Facets - a formatting approach in atproto.

Apr 2, 2026

Open Social Software. npmx

We’ve just celebrated reaching 3,000 stars, made a number of major releases, and the team gave a really great presentation at atmosphereconf... But it seems I still hadn’t actually answered so many questions - just teased at the end of the previous article. I think it’s time to formulate the answers and finally gather them all in one place.

Tools

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@nimpl/ab-tests

A package for conducting A/B tests on a website using middleware

@nimpl/cache

Caching solutions in Next.js, React Router and other frameworks. Cache handlers and utilities designed to provide efficient and scalable caching

@nimpl/cache-adapter

An adapter that allows you to use any cache handler on the client and server side and switch between them. Adds support for running next.js applications in multiple instances.

@nimpl/cache-in-memory

Base cacheHandler for next.js, which cache data in-memory

@nimpl/cache-redis

Redis-based cache handler. Designed for Next.js but can be used to build custom caching solutions for any other stack

@nimpl/cache-server

A standalone HTTP server that exposes a `CacheHandler` instance via HTTP API. Designed to work with `FetchLayer` from `@nimpl/cache` to enable distributed caching across multiple application instances.