Open-source booking system instead of SaaS — what technical overhead are we taking on?

We made the switch last year with similar hopes. We pay 18 Euro a month for the server, no more software fees. But we had to pay a freelance dev 650 Euro for the initial setup. Three months later outbound emails stopped sending, which cost 150 Euro to fix. Over the course of a year, the cost came out roughly even with the SaaS platform, but at least our data lives on our own server in Germany.

When doing the math on savings people always forget data compliance audits. You are storing patient names, phone numbers, and treatment notes. If a vulnerability gets exploited, open-source developers aren't liable; because the server is registered in your name, all legal liability falls directly on you. Without technical expertise that risk is way bigger than saving 140 Euro a month.

Deploying the system isn't just dropping files onto a server. You need to spin up an isolated container environment, configure auto-renewing SSL certificates, and set up daily cron jobs for the database. On top of that, if you plan to sync with Google or Apple Calendar, API quotas and auth tokens change annually, and you have to stay on top of them.

Don't migrate your primary system right away. Spin up a cheap subdomain and set up the open-source software there first. Run test appointments internally for a couple of weeks test phone notifications, and verify the calendar sync. If you don't know who you're going to call when something breaks, definitely do not go live with it.

we tried it and after two months appointment notifications stopped sending clients showed up at the clinic double booked total chaos but if you arent tech savvy sticking with a turnkey panel honestly saves you a massive headache.

Do your clients make an online payment or pre-authorization when booking? Or do they just pick a time slot and leave their name? If payment integration is also required, dealing with PCI compliance and maintaining payment gateway plugins on an open-source setup makes things twice as hard.

It is a common misconception to view software costs as solely the license fee. Total cost of ownership includes the server, backups, security measures, and the man-hours spent on maintenance. If your core business is physiotherapy, dedicating your time to your patients rather than reading server logs will always be more profitable in the long run.

We need to take it step by step. Processes without records never improve, because you don't know what to fix.

Of course, it varies if your situation is different.

The answer above hits the nail on the head. Weekly written progress reports are much more useful than asking for dates.

I'm also curious if anyone does it differently.

We need to take it step by step. Everyone rushing into open source booking system gets stuck at the same point.

I'm in the same situation, that's why I'm asking. Everyone rushing into open source booking system gets stuck at the same point.

If code ownership isn't in the contract, you have no bargaining power when leaving.

I agree, and I'd like to emphasize that. Any unwritten clause becomes a point of disagreement later, as both sides remember it differently.

Weekly written progress reports are much more useful than asking for dates. If you have questions, write them; I'll answer as best I can.

Let me share my experience. People defend habits not processes. Resistance comes from there.

Correct me if I'm wrong.

We experienced almost the exact same thing last year. Any unwritten clause becomes a point of disagreement later, as both sides remember it differently.

The answer varies greatly by industry; there is no one-size-fits-all rule. Correct me if I'm wrong.

It's rare to find an explanation this clear.

three different views emerged they all complement each other and mistakes made on the open source booking system side are usually reversible but expensive.

if I were you I'd go this route.

Noted, thanks.

This thread is archived. Processes without records never improve, because you don't know what to fix.

Start with a small trial; don't commit to everything at once. If you have questions write them; I'll answer as best I can.