Applications that fit
Native Apple applications and practical tools shaped around the people using them. From a focused prototype to a maintainable codebase.
Swift · SwiftUI · Python
Software & infrastructure consultant
Thoughtful software.
Solid foundations.
I’m Marco Massari Calderone. I build applications, websites and the systems behind them — turning a practical problem into something that works beautifully, and keeps working.
GitHub snapshot . Explore my GitHub
How these numbers are counted
Repository count includes forks; stars exclude forks. Contributions count merged public pull requests outside my own account. GitHub @marcomc
From first idea to everyday reliability.
Direct collaboration, clear decisions and hands-on delivery. Bring me a new idea, an existing platform or a workflow that needs to work better.
Web, built with care
Fast, accessible websites, web applications and backend services. Thoughtful interfaces with integrations that connect the moving parts.
JavaScript · TypeScript · PHP
DevOps & cloud systems
Repeatable infrastructure, dependable delivery pipelines and clearer operations. I help simplify deployment, diagnose failures and make maintenance manageable.
Linux · Docker · Kubernetes · Ansible · CI/CD
APIs & automation
Connect services, move data safely and remove repetitive work. Custom command-line tools, API integrations and Google Workspace automation.
Python · REST APIs · Apps Script · SQL
Connected devices
Useful bridges between hardware and software: Raspberry Pi services, device telemetry and home-automation integrations.
Raspberry Pi · MQTT · Home Assistant
Technical guidance
A fresh pair of eyes on architecture, code quality or a stubborn operational problem. Concrete recommendations, documented choices and a clear next step.
Reviews · Troubleshooting · Technical planning
Built, shared, improved.
A few public examples of how I approach real engineering problems. The code and contributions are there to explore.
Own open-source project
Splinter
Ansible-based macOS provisioning that turns workstation setup into a repeatable, versioned process.
Automation / Ansible
View project — SplinterMerged upstream contributions
MoneyWiz API
Contributions to a Python API: more robust handling of nullable metadata, safer test fixtures and packaging improvements.
Python / Data compatibility
View contribution — MoneyWiz API View contribution #38Merged upstream contributions
Workspace
Contributions to development-environment tooling, including PHP compatibility and dependency updates.
PHP / Developer experience
View contribution — WorkspaceOwn open-source project
BMGateway
A Raspberry Pi battery-monitor gateway connecting Bluetooth telemetry, a web interface, MQTT and Home Assistant.
Python / Connected hardware
View project — BMGatewayOwn open-source project
Tricount Exporter
A JavaScript tool for exporting shared-expense records into reusable CSV and spreadsheet formats.
JavaScript / Data portability
View project — Tricount ExporterOwn open-source project
Home Assistant MQTT Agent
A macOS telemetry agent using MQTT discovery to make system information available in Home Assistant.
Python / Automation
View project — Home Assistant MQTT AgentA clear route from problem to progress.
Understand
We start with your context, priorities and constraints.
Agree
I propose a scope, deliverables and a quote before the work begins.
Build
Small, reviewable steps with visible progress and useful feedback.
Hand over
Working code, practical documentation and agreed next steps.
Software & infrastructure consultant
What would you like to build?
For consulting enquiries or a project quote, email me with a little context: what you need, where you are now and any timing constraints.
marco@marcomc.com