What we build for ourselves.
Products and tools made at Bijblijver. They are how ideas get tested before they reach a client, and some of them run underneath the websites we ship.
01 / 04 SaaS, pre-launch
Know what your competitors changed this week.
Sparton finds the shops you compete with, reads their whole catalogue from their Shopify, WooCommerce and Lightspeed feeds, matches it to your products and writes a short report every Sunday. Every number links to the page it came from.
02 / 04 Engine, under Sparton
Exact prices from the shop's own feed, no scraping.
Most small webshops publish their whole catalogue as JSON. shopfeed reads it from Shopify, WooCommerce and Lightspeed, snapshots it and lists what changed: prices, sales, stock, new and removed products. No LLM calls. It is the engine under Sparton.
$ shopfeed detect competitor.nl shopify
$ shopfeed snapshot competitor.nl monday.json shopify: 212 products -> monday.json $ shopfeed snapshot competitor.nl tuesday.json shopify: 212 products -> tuesday.json
$ shopfeed diff monday.json tuesday.json price Candle: 24.95 -> 19.95 (-20.0%) sale Candle: on sale (was 24.95) stock Mug: sold out new Vase: new product at 34.50 EUR removed Lamp: no longer listed 5 change(s)
03 / 04 Lab
A voice agent that runs this machine.
Iris listens for a wake word, reads the screen through Windows UI Automation and asks before it changes anything. The risk tiers live in code, not in the prompt. Fully local: no cloud, no cost per command.
04 / 04 Engine, under Vistora
Did the AI change the room, or only the light?
Models that relight property photos sometimes invent things: a window on a blank wall, a longer kitchen. Fidelity aligns each output with its source and flags structural changes, so a person only reviews the photos that need it. On the screen: a staged test, the same loft relit with a window added to the brick wall.
