Ella has created our organization and campaign on DonorBox. Five people have the admin access required to see those resources at time of writing: Ella, Joep, Maxime, Tom and myself.
The campaign is already public, but not advertised: https://donorbox.org/pauseai-s-little-helpers
Embedding in the website should be easy.
We plan to announce some donation matching. Keeping figures comprehensible and not confusing to the public across that transition will require some finesse but I'm confident I will find a good solution.
We will subscribe to the Pro plan (for $150/month) before taking any significant donation, since the fees are lower: the break-even is at around €30K/year == €2,500/month donated through the platform.