Who can fix the Saturday booking rule?

The booking tool shows old hours and its original developer is away. Make one change the business can own.

A note from the studio

A repair shop changes its Saturday hours. The booking tool still offers the old time, and the contractor who built it is busy for two weeks. The owner needs the rule fixed before the next customer books a slot the shop cannot honor.

Featured podcast / The Deeper DiveThe Saturday ruleWatch the illustrated story or listen after the guide

Find the business rule first

Ask whether the change applies every Saturday or only on a holiday weekend. Check existing bookings, office calendar hours, confirmation emails, and any public page that repeats the schedule. Those are business decisions. A developer should get the answers before editing code.

OpenCode is an open-source AI coding assistant. A developer can use it to inspect the project, find the booking rule, suggest a change, and run checks. We would require the developer to review the edit and show the owner a preview booking before release.

Use the fix to improve the handoff

The shop should have access to the source code and instructions another developer can follow. The test is simple: can someone else run the project, change one rule, and put the previous version back if needed? OpenCode may help the person doing that work move faster, but it does not decide the shop's hours.

Choose the AI model and file permissions deliberately. Model calls may cost money, and a coding assistant can read or change more than the owner expects if its scope is left broad. The business should see the proposed change and the result.

A practical first step

What we would put in place

Write the Saturday rule in business terms.
Have a developer make and review a small change.
Test booking, calendar, and confirmation email before release.

Starting tool cost

$0 software; model usage varies

OpenCode is open source and can use free or local models. Paid AI provider calls and developer review are separate costs.

Check OpenCode providers USD, checked September 25, 2026. Tool fees are separate from design, development, and ongoing care. See how Mata.Works quotes the build and care.

Featured podcast / The Deeper Dive

The Saturday rule

A booking tool still offers old Saturday hours. The owner and developer need a safe way to find, fix, and test the rule.

Prefer audio? Listen here.

Read the episode transcript

AI voices perform a script reviewed by Mata.Works. Landon and Tam are the illustrated hosts. The business scenario is an example.

Landon: A repair shop changes its Saturday hours. The booking tool still offers the old time. The contractor who built it is busy for two weeks. The owner asks, "Can anybody else fix this?"

Tam: First, find the source code and the rule that controls Saturday bookings. If the business has the code and another developer can run it, this may be a small change. If those pieces are missing, the bigger problem is ownership and handoff.

Landon: Where could OpenCode help?

Tam: It is an open-source AI coding assistant. A developer can ask it to inspect the project, find the booking rule, propose a change, and run checks. Think of it as help for the person doing the work. It does not know whether the shop closes at two or three unless the owner tells it.

Landon: Suppose it finds the line and changes two to three. Are we done?

Tam: No. Saturday bookings may also show up in confirmation emails, the office calendar, and the service-area page. The developer reviews the change, tests those paths, and shows the owner a preview booking. Then a person approves the release.

Landon: What would you ask the owner before anyone touches the code?

Tam: Is this for every Saturday or one holiday weekend? What happens to appointments already booked? Who can override the hours? Those answers are business policy. They should be written down before the assistant starts editing.

Landon: OpenCode can use different AI providers. Does that matter to the owner?

Tam: Mostly as a cost and control choice. The team should know which model it uses, what project files it can read, and which actions require approval. The owner should see the scope and result, without having to manage model settings.

Landon: So what are we selling here?

Tam: A shop that can make a small change without waiting two weeks or gambling on a blind edit. The tools help the developer move. The business keeps its code, its rules, and the final say.

Open the episode in the series

Would this fix a real snag at your shop?

Fix the booking rule