01 / Index Eduardo Alonso / Software Engineer

I BUILD.
I MEASURE.
I WRITE.

Compilers, backend systems and technical notes.

I build Achronyme and web products; here I document the decisions, measurements and failures behind that work.

Read latest note See work and study

Project inquiries / eddndev.com

Contact

02 / Content index

Recent work

view blog

01 Latest note

Achronyme 0.1.0: stable at last

The stable Achronyme release, the ceremony that delayed it, and the evidence I needed before publishing it.

Aug 08, 2026

02 Latest article

A Private Auction as an Achronyme Integration Test

A detailed walkthrough of one Achronyme program that joins structured concurrency, capabilities, Poseidon commitments, Merkle membership, and a Groth16 proof.

Aug 09, 2026 Advanced

03 Latest solution

0003 Longest Substring Without Repeating Characters

Implementation with time and space complexity.

Medium / Time O(n) / Space O(1)

03 / Public activity / live data

RECENT
ACTIVITY.

Recent GitHub contributions, repository languages and LeetCode submissions.

Activity on GitHub

@eddndev

10716 contributions in the last year

Less

Most used languages

Repository bytes

Distribution by bytes across public and organization repositories.

Rust

38.9%

Dart

13.6%

12.5%

TypeScript

9.2%

JavaScript

5.7%

Python

3.7%

3.2%

Activity on LeetCode