MakAir Series: Engineering Focus on Ventilator Software

This is the sixth (and last!) article of a series on the MakAir open-source ventilator, a project that I founded with friends, which was born at the beginning of the COVID-19 pandemic in early 2020. Think of this series of articles as a ledger of all that happened and all »

MakAir Series: Engineering Focus on Ventilator Electronics

This is the fifth article of a series on the MakAir open-source ventilator, a project that I founded with friends, which was born at the beginning of the COVID-19 pandemic in early 2020. Think of this series of articles as a ledger of all that happened and all that was »

MakAir Series: Engineering Focus on Ventilator Pneumatics

This is the fourth article of a series on the MakAir open-source ventilator, a project that I founded with friends, which was born at the beginning of the COVID-19 pandemic in early 2020. Think of this series of articles as a ledger of all that happened and all that was »

MakAir Series: The Building Blocks of a Mechanical Ventilator

This is the third article of a series on the MakAir open-source ventilator, a project that I founded with friends, which was born at the beginning of the COVID-19 pandemic in early 2020. Think of this series of articles as a ledger of all that happened and all that was »

MakAir Series: How to Ventilate a Human Patient 101

This is the second article of a series on the MakAir open-source ventilator, a project that I founded with friends, which was born at the beginning of the COVID-19 pandemic in early 2020. Think of this series of articles as a ledger of all that happened and all that was »

MakAir Series: The Inception of an Open-Source Ventilator Project

This is the first article of a series on the MakAir open-source ventilator, a project that I founded with friends, which was born at the beginning of the Covid-19 pandemic in early 2020. Think of this series of articles as a ledger of all that happened and all that was »

3D Printing: My DIY Formlabs Enclosure Project

When the Formlabs Form 3 was released back in late 2019, I jumped on to ordering it and trying it out, with a future hardware project in mind. I was new to SLA (Stereolithography), coming from the world of FFF/FDM (Fused Filament Fabrication) with my MakerBot Method. Unfortunately, I »

Announcing Sonic: A Super-Light Alternative to Elasticsearch

When one builds a product, a good measure of success would not be how much time users spend on the product, but how much time users save by using it. Let search be at the core of any product for that purpose. Three years ago, I started Crisp with Baptiste »

The Crisp Raison d'Être & Master Plan

Background: I’m Valerian Saliou, CTO and co-founder at Crisp, the Customer Support platform for everyone. My day job consists of designing & building Crisp products, and maintaining the infrastructure that makes everything run. I have tens of other project ideas, some of which are planned to be started at »

Announcing Vigil: How We Monitor Crisp at Scale

This article is a repost of the original article: Ditch your Status Page: How we monitor Crisp at scale on Crisp blog. The Crisp technical architecture runs around 40+ different micro-services, all replicated across different physical machines. Adding to that, we have around 20 daemons operating different tasks, eg. data »