Websites & apps
Showcase sites, e-commerce, customer portals, back-offices and APIs. Custom code that is fast and maintainable, without the bloat.
Strasbourg, France · open to new projects
From code
to cable.
I'm Chris, 28. Back-end developer, systems and network administrator, and operator of my own network, AS202827. I build websites and applications, and I run the infrastructure that hosts them.
$ whois AS202827 | summary as-name AS-EXAGROUP org EXAGROUP (non-profit) since 2022-09-20 · RIPE NCC ipv4 82.38.17.0/24 ipv6 2a13:89c0::/32 ixp 18 incl. SBG-IX, NL-IX, LOCIX policy open peering $
- 14 yearsin hosting & infrastructure
- AS202827operated for 4 years
- 18Internet exchange points
- 6projects in production
About
One person, from the web page to the router.
I've been hooked on computers since childhood and I'm self-taught. Today I'm a back-end web developer and a systems and network administrator. Over the years I've built experience that runs from code to infrastructure: PHP and SQL development, Proxmox and VMware virtualisation, hosting control panels, BGP routing, all the way to my own servers in data centres.
I now run my own network and hosting infrastructure through EXAGROUP, and I help individuals, non-profits and businesses across the whole stack: website development, hosting, server administration and infrastructure management. My approach is simple: reliable, secure solutions that are easy to use.
I'm also a trained electrician, so I'm comfortable with hardware too: building and repairing PCs and smartphones, electronics, racks and cabling. Understanding what's going on under the hood is part of the job.
Hosting
Web hosting, VPS, dedicated servers and colocation on my own infrastructure in France. Backups, monitoring and direct support.
Systems administration
Setup, hardening and maintenance of Linux servers, Proxmox virtualisation, zero-downtime migrations.
Network & infrastructure
BGP, peering, GRE tunnels, IPv6, MikroTik and Cisco routers, monitoring. I can help you get and run your own AS.
Work
What I've built.
Projects in production, designed, developed and hosted by me.
EXAGROUP
My non-profit hosting provider: web hosting, KVM VPS, dedicated servers, colocation, domains and BGP sessions. Everything runs on my own infrastructure and my own customer panel, written from scratch: Proxmox, Plesk and PowerDNS provisioning, BGP/GRE tunnels, 2026 e-invoicing compliance, 2FA, REST API, affiliate programme.
Founder · dev · infra Visit →
Nuitor
A team of autonomous AI agents that runs a small business overnight: website, social media, support, reporting. Sensitive actions wait for human approval. Marketing site in Next.js, customer portal in PHP, customer VMs provisioned on my own cloud in Paris.
Product · full-stack Visit →
BoomGo
A "no-swipe" dating app made in France: you post a plan to go out nearby, and faces stay blurred until there's a spark. Mobile app, admin back-office, API and push notifications.
Product · back-end · mobile Visit →
PhoneRepair Hoenheim
My smartphone, PC and console repair business in Hoenheim, near Strasbourg, in-shop or at your home. Online booking, quotes, a page per type of repair, local SEO.
Design · dev · repair tech Visit →
SuzyNails
An online shop for handmade luxury press-on nails, in French and English. Catalogue, session-based cart, orders by email, onyx black, pink and gold branding. Zero dependencies, zero database.
Design · dev
EXA-VCARD
Digital business cards with QR code and NFC, offered to EXAGROUP customers (private drivers, freelancers…). Designed, built and hosted end to end: card editor, real-time visit analytics, QR and NFC sharing.
Design · dev · hosting Visit →
The archivesCrazyH, Exanot, Geek-For-Life… the early projects
Network
I run my own piece of the Internet.
AS202827 is the autonomous system of EXAGROUP. It announces its own IPv4 and IPv6 address space, exchanges traffic directly with other networks at 18 Internet exchange points across Europe, and buys transit from several carriers. My customers' servers are reachable over paths I control end to end.
In 2022 I also founded SBG-IX, an Internet exchange point in Strasbourg, so that local ISPs and hosting providers can interconnect locally.
Exchange point presence
- SBG-IXStrasbourg · 10G
- INTERIX10G
- NL-IXNetherlands
- LOCIXFrankfurt · Düsseldorf
- FREMIXFrance
- FRYS-IXNetherlands
- ONIX
- BGP.ExchangeParis · Lyon · Zurich
- SBIXZurich
- + 9more
Background
Twenty years of tinkering, 14 of them hosting for others.
-
2026
Nuitor · BoomGo · PhoneRepair
Launched products on my own infrastructure: an AI agent platform, a mobile app and a local repair business.
-
2023 →
Founder of EXAGROUP
A French non-profit that took over Exanot's activity: web hosting, VPS, dedicated servers, colocation and BGP services on AS202827.
-
2022
AS202827 & SBG-IX
AS number assigned by the RIPE NCC. Founded SBG-IX, an Internet exchange point in Strasbourg where regional ISPs and hosts interconnect.
-
2020 – 2022
Administrator & web dev · Oxidia-Cloud
Server and router hosting in data centres (DC2Scale, Equinix PA9), web hosting, virtualisation, running several ASes.
-
2018 – 2023
Building & commercial electrician
Structural and finishing work, commercial renovations, server rack installs, cabling and CCTV (including a Hermès store in Strasbourg). I know networks right down to the cable.
-
2012 – 2023
President · CrazyH, then Exanot
Founded a non-profit hosting provider: websites, domains, reseller hosting, VPS, databases, then servers and routers in data centres.
-
2005
The beginning
Self-taught from age 7: take it apart, understand it, put it back together. PCs first, then code, then networks.
Education · Web developer (Udemy) · Systems, network and security administrator (OpenClassrooms) · Overhead & underground power line technician (AFPA, Golbey)
Contact
A website, a server, a network?
Let's talk.
I reply personally, usually within the day. French or English.