A Raspberry Pi 3 as a mainnet validator — what a 1 GB board teaches a blockchain node
I run a small Layer-1 called Janzeer: stake-free BFT, 15-second slots, two voting rounds, finality in one block. The four founding validators live on one 2 GB VPS, and I wrote about that box last week . This post is about the fifth validator. It is a Raspberry Pi 3 Model B from 2016 — four Cortex-A53 cores at 1.2 GHz, 1 GB of RAM of which 905 MB are usable, a USB disk, and 2.4 GHz Wi-Fi in a flat…
A small Layer-1 blockchain called Janzeer utilizes a unique stake-free Byzantine Fault Tolerant (BFT) consensus mechanism. The network operates on 15-second slots with two voting rounds, achieving finality within a single block. Initially, the four founding validators were hosted on a single 2 GB VPS, but the fifth validator was added on a Raspberry Pi 3 Model B, a modest 1 GB RAM board.
This Raspberry Pi, initially facing challenges in running the node, helped uncover several critical bugs in the software. Despite the limitations of the Pi's hardware, it successfully generated blocks on the mainnet since October 15, 2026. The experience gained from running the node on such a low-powered device led to the discovery and fixing of seven bugs that had not been seen on the four servers hosting the original validators.
The experiment highlighted the importance of testing blockchain nodes on various hardware configurations to ensure their robustness and reliability.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
