Engineering blog

Notes from building a small cloud — what we ship, what we picked, what we learned. Mostly technical, mostly honest.

22 Apr 2026·7 min·
#engineering#ssh
How we built browser SSH for cloud VMs without a backend agent
CloudNx's CloudShell terminal opens an SSH session right in your browser without installing anything on the VM. Here's the architecture and the trade-offs.
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15 Apr 2026·5 min·
#product#billing
Per-minute billing in INR: how UPI-first pricing changes cloud margins
Why CloudNx bills by the minute, in rupees, with GST. The economics, the ops trade-offs, and what it means for your dev sandbox cost.
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8 Apr 2026·8 min·
#engineering#mail
We replaced Zoho Mail with Mailcow on a Hetzner box — here's the math
Self-hosting email is supposedly painful. With Mailcow + a dedicated IP + 4 GB RAM, it's actually pretty boring. The annual savings paid for our second AX41.
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1 Apr 2026·6 min·
#engineering#infrastructure
Why we picked Proxmox over OpenStack for a single-node cloud
OpenStack is the reflexive answer for 'open source AWS'. For a small platform serving real customers, it's wildly over-engineered. Proxmox VE wins.
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25 Mar 2026·6 min·
#product#engineering
Building a global admin panel for a small cloud platform
Customer support, billing reconciliation, GST invoicing, fraud signals — all in one panel. Five days of work that pays back monthly.
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