XiliuxServices
Rust systems, post-quantum cryptography, AI integration and automation. You work directly with the person who writes the code — there is no account manager in between.
Custom system — Rust
Systems built to last: an axum + SQLx backend, server-rendered UI, post-quantum signing with Quipu, shipping as a single binary with one database file. It is what I run in production myself. Priced by number of requirements and their complexity.
AI integration with LLMs
Claude, GPT and Gemini wired into a product that already exists, with the boring part done: cost ceilings, retries, failure paths, and an evaluation that does not flatter itself.
Prototype / MVP in Python
Validate the idea fast (FastAPI, NiceGUI). It is the first rung: when the prototype proves its worth, it grows into the Rust system.
Scripts and automation
Process automation, scraping and bots. Fast, measurable results: first value in days, not months.
How I work
Closed price agreed before anything starts. No surprises halfway through. Correspondence in English or Spanish.
1. We talk
Tell me the problem by email. No commitment.
2. Proposal
Scope, timeline and a closed price within 24–48 h.
3. Build
Incremental deliveries and constant communication.
4. Delivery
Deployment, documentation, source and initial support included.
And what I build for myself
The best reference for how I work is what I keep in production: Quipu, a post-quantum cryptography library in production use, and nine Apache-2.0 libraries whose complete source is delivered signed to anyone who asks. Not demos.