How to Set Up Silent Receipt Printing on a Web POS (Without Annoying Browser Popups)
Eliminate checkout lag. How independent retailers run silent, automatic receipt printing on Epson and Star thermal printers using open POS standards.
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The Real Cost of Square & Shopify POS: How to Run an In-Store Register with Zero Monthly Software Rent
The three-year arithmetic of per-register software rent, with the self-hosted alternative measured on a real server: 536 MiB of RAM and roughly $12 a month.
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Ultimate POS vs Odoo 18 Community: Which One Is Best for Main Street Retail?
A comparison that says which numbers were measured and which were not. Odoo 18 used 536 MiB on our server, not the 4 GB usually quoted — and the real dividing line is whether you manufacture anything.
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Best Self-Hosted Retail POS Software with No Monthly Fees (2026 Guide)
Odoo 18 deployed and measured on a live VPS: 536 MiB with three workers, 77 seconds to install the POS modules, and the one setting that decides whether the WebSocket port exists at all.
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A Local LLM on a $9 VPS: 9 Tokens a Second, No Matter How Many Users
Ollama on a CPU-only 2 vCPU server: 8.7 tokens per second, throughput flat under concurrency, 12 GB of disk, and double the response time on the five sites sharing the machine.
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Off-Site VPS Backups to S3: Why rclone Sends 50× More Than restic
Five sites producing 217 MB of backups a night. A mirror uploads all of it; a deduplicating tool uploaded 4.4 MB. Plus the deletion trap in rclone sync and what your bucket keys actually expose.
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Redis Caching for PHP, Measured: 86% Fewer Queries, No Faster Pages
A Redis object cache took a WordPress page from 64 SQL queries to 9 and made it 2.5 ms slower. Redis sessions looked 2.7x faster and lost 13 of 20 concurrent writes.
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Ghost vs WordPress on One VPS: The Speed Gap Is Page Weight, Not the Engine
Same server, same MySQL, same article injected into both. Ghost served 3.1x more requests uncached — and generated HTML at the same rate, because its page was 3.4x smaller.
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Uptime Kuma on a $9 VPS: What 60 Monitors Actually Cost in RAM, CPU and Disk
Deployed on a live server already running five production sites, scaled to 60 monitors, and measured: 104.7 MiB idle, 359 bytes per heartbeat, 30 MB of disk a day, and a status page serving 878 requests per second.
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MySQL Server Has Gone Away: Why Error 2006 Is a Symptom, Not a Cause
Error 2006 is reported for at least three unrelated faults. We reproduced each one on a live server, timed them, and found that the error you need is usually the one logged just before it.
