One-week software sprint

Build it in one week. Pay only if you want it.

Tell us what to build. If we accept, we build it with you in one week. Then you decide.

Join the waitlist See how it works

Donux has worked on 80+ B2B SaaS products

Bring us the challenge

What could we build in a week?

A new feature

A real addition to your existing product, designed and built against the actual codebase.

A product redesign

One important section or flow, rethought and implemented instead of left in a design file.

An internal tool

Something your team keeps doing by hand that software should handle instead.

A new product

The smallest useful version of an idea you want to put in front of real people.

One challenge. One week. One choice.

A software product walkthrough

Walk us through it

Show us the product, the problem, and the result you want at the end of the week.

A focused software challenge brief

We accept or decline

We only take challenges we believe we can turn into worthwhile software in one week.

Software being designed and built

We build together

You answer questions and make decisions. We design, build, and do what is needed to finish.

A completed software result ready for review

You decide

Pay €4,000 and take the work, or pay nothing and leave it with us.

A software product walkthrough A focused software challenge brief Software being designed and built A completed software result ready for review

If you say yes, it is yours

One payment unlocks the client-specific work from the week.

You receive
  • Source code and commit history
  • Editable design files
  • Tests and relevant documentation
  • Implementation notes and configuration

Independent reviews from teams that have built products with Donux

The practical questions

Can we ask you to build anything?
You can propose any software challenge. We decide whether to accept after you walk us through the product, the context, and the result you want.
What do we agree before the week starts?
We agree on the intended result, the main constraints, how we will work together, and what you need to give us access to. A short master agreement covers confidentiality, access, payment, and ownership.
What happens if we do not want the result?
You pay nothing. The client-specific work stays with Donux, and you cannot use it or ask us to build on it later.
Can we continue after the first week?
Yes. Each week is an atomic sprint. To continue from a result, you pay for that sprint first. The next sprint is a separate decision.
Is the price always €4,000?
Yes for an accepted one-week sprint, plus VAT when applicable. There is no financial commitment before you choose to keep the result.

Join the waitlist

What should we build in one week?

Tell us what you want to build. If it looks like a good challenge, we will invite you to walk us through it.

Join the waitlist

No financial commitment. We select each challenge.