Blog
Practical guides for shop owners, notes on how we build software, and useful ways to use AI in a small business.
For shops
GST on clothes and footwear: 5% or 18%, and how to get it right on every bill
Since September 2025 the rate depends on the price of each piece, not the bill. Here is how the ₹2,500 rule works with GST-inclusive tags, discounts and mixed bills.
28 October 2026
Engineering
How we built billing that keeps working when the internet drops
A shop can't tell a queue of customers to wait for the Wi-Fi. Here is how ShopyDay keeps making bills offline, and why the server never refuses a bill once it has been handed over.
28 October 2026
AI
Five ways a small shop can use AI today (and two to avoid)
Free AI assistants like ChatGPT, Claude and Gemini can save a shop owner real time this week. Here is where they help, and where they can cost you money.
28 October 2026