In 2024, a 2017 MacBook Air (4GB RAM, i5-1.6GHz, battery showing "Service Recommended") started running a full after-school tutoring center management system.
No GPU. No server clusters. No cloud bills. This computer's resale value is under Β₯1,000 β yet it simultaneously runs a CRM system, GPS check-in, gateway proxy, intranet tunnel, DeepSeek API proxy, memory watchdog, and 21 cron jobs.
Two years of uninterrupted operation. Zero downtime incidents.
Traditional solutions cost $220/month (ChatGPT Pro $200 + Claude Pro $20), not counting cloud servers and developer time. Tianba costs just $1/month β with all data stored locally and never transmitted.