Growth
Brand, website and product to explain what you sell and turn a need into a useful solution.
Custom software. Design. Rust engineering.
We design and refine what drives your business.
Custom software, automation and web design to launch, connect and improve your business. With specialist Rust expertise and a scope we define together.
Where are you now?
Look beneath the surface
How we move your business technology forward.
A website that fails to explain your offer, tools that cannot share data or a product that is hard to maintain: we find the source of the problem and build the next step with you.
Engine
Rust engineering, automation and systems that help your team run and develop its technology.
Every point contributes to the answer.Two ways to move your business forward
What you see.
Everything that makes it work.
Each service addresses a specific problem. Explore our capabilities or go straight to the service that fits your business.
We close the loop
Custom software development
Your idea needs to become a useful tool.
Applications, portals and internal tools built around the way you work.
Product definition · Interface and application · The connections you need
Explore custom software developmentCustom websites
Your website needs to adapt to the way you work.
Design, content and editing that help your website explain what your business offers.
Information architecture and copy · Responsive design · Development and editing
Explore custom websitesWeb Rápida
You need to start with a website whose scope is clear.
A clearly scoped WordPress website to present your services and make contact easier.
An agreed structure · Visual adaptation · WordPress set up for use
Explore Web RápidaFull-stack Rust development
Your product needs a reliable technical foundation.
Rust backends, interfaces and integrations to build a complete digital product.
Product architecture · Rust backend · A connected interface
Explore full-stack Rust developmentRust automation
Your team repeats tasks across tools.
Connected tools and automated processes with traceable execution and exception handling.
Process map · Connectors and APIs · Workers and workflows
Explore Rust automationSaaS development in Rust
Your SaaS needs to launch, improve or regain stability.
SaaS development, repair and evolution, from the first product through ongoing maintenance.
Product assessment · Multi-user foundation · Features and fixes
Explore SaaS development in RustCrypto and Web3
Your project needs to connect product and protocols.
Applications, contracts and processes connected where the use case calls for blockchain.
Integration design · Connection to contracts and services · State handling
Explore Crypto and Web3Rust engineering and advanced systems
Performance or complexity is limiting your system.
Diagnosis and improvements to performance, concurrency and integration in existing systems.
Technical analysis · Intervention design · Component or improvement
Explore Rust engineeringBrand identity
Your business has value. Make it understood.
Positioning, naming and visual and verbal identity with a shared direction.
Positioning · Naming where needed · Visual and verbal identity
Explore brand identityCybersecurity
You need to identify risks and address what leaves you exposed.
Software, infrastructure and blockchain reviews with evidence and remediation priorities.
Threat modelling · Software and architecture review · Blockchain and cryptography
Explore cybersecurityTechnology is chosen after understanding the problem.
What you need to move forward.
What we can build.
Find a service by the problem you need to solve. Each page explains who it is for, the work involved and how to get started.
Custom software development
Your idea needs to become a useful tool.
Custom websites
Your website needs to adapt to the way you work.
Web Rápida
You need to start with a website whose scope is clear.
Full-stack Rust development
Your product needs a reliable technical foundation.
Rust automation
Your team repeats tasks across tools.
SaaS development in Rust
Your SaaS needs to launch, improve or regain stability.
Crypto and Web3
Your project needs to connect product and protocols.
Rust engineering and advanced systems
Performance or complexity is limiting your system.
Brand identity
Your business has value. Make it understood.
Cybersecurity
You need to identify risks and address what leaves you exposed.
- 0102
Quick WordPress website
ProJóvenes: a website that inspires action
Website for youth association ProJóvenes, with paths to learn about its mission, explore the project and get in touch.
- Quick WordPress website
- 0202
Quick WordPress website
Método Taibo: a custom WordPress website
Método Taibo website built with a Hello Elementor child theme, custom PHP templates and ACF fields.
- Quick WordPress website
Código Palanca
A clear direction.
One step at a time.
We understand your starting point, organise decisions and build with a way to check progress.
01Discovery
We review the business, the current system, its users, constraints and the problem that deserves attention. This shows what information is missing, what risks exist and where to start.
Intended outcome: An informed starting point.
02Positioning
We clarify who the solution should serve, which need it addresses and why its proposition should be preferable to the alternatives. This definition guides both the product and its message.
Intended outcome: A clear value proposition.
03Strategy
We organise scope, risks, progress indicators and decisions to establish what to build now, what can wait and how to check the direction. Different problems call for different levels of technical complexity.
Intended outcome: A sequence with priorities and scope.
04Architecture and integrations
We decide how channels, data, infrastructure and integrations should relate so that a website, automation, internal software or digital product works as a coherent system.
Intended outcome: A foundation of connections proportionate to the problem.
05Build
We build and connect the pieces required by the scope: interface, software, automation or infrastructure. Each technical decision has a clear function within the solution.
Intended outcome: A solution suited to the problem.
06Testing and pre-launch security
We review behaviour, accessibility, performance, security, recovery and operational readiness according to the actual risks. These checks make both resolved issues and outstanding limits clear.
Intended outcome: A release with identified and addressed risks.
07Launch and evolution
We publish or activate with control, review usage and maintain the solution. Evidence guides adjustments and the next decision, without letting complexity accumulate by default.
Intended outcome: A foundation that can evolve with sound judgement.
What we build with
The technology behind every system.
We choose each part for the problem it needs to solve in your business.
Languages and technologies
TypeScript
Rust
Solidity
Python 3
JavaScript
React
PHP
CSS
HTML
C
C++
Go
Java
Erlang
Elixir
Haskell- Dolphin Scripting
Backend
The logic, data and connections behind your system.
Rust
- Axum
- Actix Web
Tokio- SQLx
- SeaORM
- Serde
- Tonic
TypeScript and JavaScript
Node.js
Bun
NestJS
Fastify
Hono
Express
Prisma
Drizzle
Python 3
FastAPI
Django
Flask
SQLAlchemy
Pydantic
Celery
PHP: WordPress with child themes, plugins and REST API
Laravel
Symfony
WordPress
Composer
Go
Gin- Echo
- Fiber
- chi
- sqlc
Java
Spring Boot
Quarkus
Hibernate
Erlang and Elixir
- OTP
- Phoenix
- LiveView
- Ecto
- Oban
Haskell
- Servant
- Yesod
Persistent
C and C++
- Drogon
- Boost.Asio
Databases
PostgreSQL
MySQL
MariaDB
SQLite
Redis- Valkey
MongoDB
ClickHouse
Messaging
RabbitMQ- NATS
Kafka
Protocols
- REST
GraphQL- gRPC
- WebSockets
OpenAPI
Artificial intelligence
Models and data connected to specific tasks in your business.
Python 3
PyTorch
Hugging Face Transformers
scikit-learn
LangGraph- LlamaIndex
Rust
- Candle
- Burn
- mistral.rs
- ort
TypeScript
Vercel AI SDK
LangChain.js
C and C++
- llama.cpp
ONNX Runtime
CUDA
Models via API
Claude- OpenAI
Mistral
Local models
Ollama- llama.cpp
vLLM
RAG and vector search
- pgvector
Qdrant
Agents
MCP servers- Tool use
- Multi-agent workflows
OCR and documents
- Tesseract
- PDF extraction
Automation
Connected tasks, tools and teams to reduce manual work.
Rust
- Tokio
- reqwest
- scraper
- chromiumoxide
Python 3
- Playwright
- Celery
Prefect
Airflow
TypeScript
- Playwright
- BullMQ
Cross-platform
Temporal
Elixir
- Oban
- Broadway
Open-source platforms
n8n- Activepieces
Integrations
WhatsApp Business Cloud API
Meta Graph API
Telegram Bot API
Google Workspace- Slack
- Webhooks with HMAC
System
Bash- cron
- systemd
Commerce
Sales, payments and invoicing in one connected flow.
PHP
WooCommerce
PrestaShop- Magento
- Adobe Commerce
Shopify
Liquid- Shopify Admin API
- Shopify Storefront API
- Hydrogen
TypeScript
Medusa
Payments
Stripe
Redsys- Bizum
PayPal
Invoicing in Spain
- Verifactu
- TicketBAI
- Facturae
Web3 with Solidity
- Foundry
OpenZeppelin- viem
- Alloy-rs
wagmi
Mobile
Your product on the device your customer uses.
TypeScript and React
- React Native
Expo
Rust
Tauri 2- UniFFI
Java
Native Android
C and C++
- Android NDK
HTML, CSS and JavaScript
PWA
Infrastructure
Deployment, observability and continuity to keep operations under control.
Operating systems
Ubuntu Server
Debian
Kali Linux- Parrot OS
Containers
Docker- Docker Compose
Podman
Kubernetes
k3s
Web server and proxy
Nginx
Caddy- Traefik
Apache
Infrastructure as code
Terraform
OpenTofu
Ansible
CI/CD
GitHub Actions
GitLab CI
Observability
Prometheus
Grafana- Loki
Uptime Kuma
Providers
- Own VPS
Cloudflare- AWS
- Nodes
- Masternodes
Backups
- restic
Frontend
The interface that turns a system into a useful experience.
Interfaces
- React
Next.js
Astro- TypeScript
- HTML
- CSS
Tailwind- WordPress with a child theme
The choice depends on the project scope.
The thinking that drives us
Explore further.
Build with purpose.
We explore technologies that open up new possibilities. We choose what to build for the value it brings to your business and test it in the real system.
Curiosity
Ask better questions before choosing an answer.
Precision
Take care of the connections, including those you cannot see.
Ambition
Explore possibilities and test their value by building.
Desarrollo full stack en Rust
Rust applications: when sharing a language pays off
If you are building or renewing an application, learn when using Rust in both the interface and server makes sense and which costs to assess.
Read articleWeb para negocios locales
Start with the business problem: how we work at Calicata
A website begins before you choose a template. It begins by understanding what your business sells, who needs it and what holds them back. Here is how Calicata works, why we follow this order, how much method each project needs and what we do not promise.
Read article
Before you start.
The first decisions deserve clarity too.
Do I need to know which technology I need?
We start with the problem, objectives and constraints. Technical decisions follow once we understand what needs to be solved.
Can you work on an existing system?
Yes. We review the code, connections and operation to decide what to keep, fix and extend. You can start with a specific improvement.
How is the scope defined?
We agree on the objective, deliverables, dependencies and how delivery will be checked. The proposal sets out the budget and schedule; any scope changes are reviewed with you.
The next step
What does it take to move your business forward?
Tell us where you are and what you want to achieve. In an initial conversation, we will clarify your starting point and the next step.