Zero-capital automation: running a business from Termux

Description and use

A zero‑capital automated micro‑business running on an Android phone via Termux, monitoring cryptocurrency arbitrage and sending Telegram alerts.

Problem

Build a sustainable, automated micro‑business with no upfront capital beyond an Android phone.

Outcome

A fully automated, zero‑capital micro‑business that monitors cryptocurrency arbitrage opportunities and alerts the owner via Telegram, all running locally on an Android phone.

Workflow

• Install Termux and required packages (pkg install curl grep jq)
• Create a scraper script (scraper.sh) that fetches data with curl, parses with grep, and logs output
• Wrap the script in a while‑true loop with sleep to schedule periodic runs
• Use termux‑wake‑lock to prevent the phone from sleeping during execution
• For arbitrage monitoring: fetch price via KuCoin API, parse JSON with jq, compare to a base price, and send a Telegram notification if discrepancy exceeds threshold

Evidence

Termux is essentially a Linux distribution crammed into your Android phone.

Source

The heart of this approach is scheduling tasks to run automatically, even when your phone is idle.

Source

I've built a system that monitors price discrepancies between cryptocurrency exchanges.

Source