Hi, I'm Antonio Guerrisi
10+ years keeping infrastructure running, projects on track, and users (mostly) happy. I build tools, write automations, and solve problems with whatever works.
Hi, I'm Antonio Guerrisi
10+ years keeping infrastructure running, projects on track, and users (mostly) happy. I build tools, write automations, and solve problems with whatever works.
The Approach
Vibe coding — ideas first, syntax second
With over a decade in IT, most of the tools I needed either didn't exist, cost a fortune, or were built for enterprises ten times the size of my environment. So I started building my own. Not because I was a developer — I wasn't — but because the problem needed solving.
The vibe coding approach is simple: I define the problem clearly, describe what the solution should do, and collaborate with AI to bring it to life in code. I'm the architect and domain expert; the AI handles the boilerplate and syntax. The result is a growing library of practical, real-world tools that actually get used. So far so good.
Areas of Expertise
The domains where the decade of experience actually lives.
Designing, deploying, and maintaining on-prem and hybrid server environments. Windows Server, Linux Server, Active Directory, Group Policy, and virtualization with Proxmox, Hyper-V and Azure.
End-to-end network architecture and troubleshooting — from switch configs and VLANs to firewall rules, VPNs, and DNS. Comfortable with Cisco, Cisco Meraki, Ubiquiti and Pi-Hole environments.
Deep hands-on experience administering M365 tenants — user lifecycle management, Exchange Online, Teams, SharePoint, Intune, and Conditional Access policies at scale.
Featured Projects
A few tools built to scratch real operational itches.
A Flutter mobile app for iTop ticket and asset management with secure login, localized English/Italian UI, and REST API integration.
Network Designer is an offline, cross-platform desktop app for building network diagrams from declarative JSON: define device models (with custom icons), devices, and connections, then visualize and rearrange the generated graph with real-time routing and multiple layout modes.
LiberLoci: a self-hosted, responsive web app to catalog your personal library. Fast search by title/author/ISBN, quick ISBN scan on mobile, local cover storage, location-based browsing (room/shelf/level), and full JSON import/export for backups and portability.