I serve my website with a swarm of ESP32 microcontrollers on a shelf
A personal website served from six ESP32-S3 microcontrollers: elected load balancer, virtual-MAC failover, OTA with rollback. No cloud, no CDN, no Pi. - Novotarskyi/ivan-bohun
In plain words
This project runs a personal website on six ESP32-S3 microcontrollers instead of cloud infrastructure. The microcontrollers use wireless elections to select a load balancer that accepts incoming connections and routes them to available blades, which then serve pages from local storage. The system includes virtual-MAC failover for redundancy and over-the-air updates with rollback capability. It targets hobbyists interested in alternative hosting approaches without relying on cloud providers, CDNs, or traditional single-board computers.
written from the facts on this page · September 2026
From the sources
A personal website served from six £12 microcontrollers on a shelf in a London flat. No cloud. No CDN. No Raspberry Pi. No reverse-proxy box. Four ESP32-S3 blades with wired Ethernet hold an election over encrypted radio. The winner puts on the mask - a virtual MAC address no factory ever issued, plus the one LAN address the router forwards - and becomes a layer-4 TCP splicer : it accepts your connection and relays the raw bytes to whichever other blade is least busy. That blade terminates TLS 1.3 and serves the page out of its own flash. Kill the leader, and another blade wears the mask in under four seconds - same MAC, same address, same certificate, different silicon. Kill everything but…from github.com
Does the same job
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- BSBaker Street – A simple client-side load balancer for microservices2015 · bakerstreet.io · ▲83
Serverless Headless CMS by Webiny2020 · ▲124Go serverless with Webiny and save 60-80% on hosting costs
- MUManaged UniFi Controller Hosting2019 · cloudbit.io · ▲46
- EAEbbflow – A Multi-Cloud Load Balancer and SSH Proxy. Host from Anywhere2020 · ebbflow.io · ▲7
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