Bank rule monitoring used to eat a chunk of this team's week, every week. Nobody enjoyed it. Everybody knew it mattered.
Accounting platforms let you write rules that sort transactions on their own. Those rules drift. Somebody edits one, a vendor changes a name, or a rule quietly stops matching. Then the books go sideways and nobody notices until close.
So this team checked the rules by hand. A person opened the screen, scanned the list, and compared it against what they remembered from last month. That is not a job. That is a chore with a deadline.
We built a Chrome extension that watches the rule set inside the tool they already use. It records the current state, compares it against the last known good version, and flags anything that moved.
Nobody logs in to check. The extension does the looking, and a person only steps in when something actually changed.
The accounting platform was not going anywhere. It handles payroll, reporting, and a decade of history. Ripping it out would have been reckless.
Instead we left the system alone and removed the tedious part. That is the whole idea behind augmenting a tool rather than replacing it. The team kept every workflow they trusted.
That last line matters most. Bank rule monitoring runs on software this team owns outright, so the cost does not climb next year.
You own the code. You own the logic. If we disappeared tomorrow, another developer could pick it up and keep going. No seat fees, no plan tiers, and no vendor deciding your feature belongs in a higher bracket.
Rented tools work differently. Airtable, for instance, caps API requests at five per second on every plan, and money will not lift that ceiling.
Probably, if some part of your week involves a person checking a screen for changes. Look at the second build for a different flavor of the same idea.
Then read custom software vs SaaS for the cost math behind it.