Selfhosted

there are a couple of projects I've seen, and surely people will fork off one of the open robo-vac projects to spin knives.

Robot mowers are in this grey area where if you have a big enough area to mow that you cant walk it in 15-30 minutes with a push mower, you could get a small riding mower for the same price, and now you also have a handy tractor too.

I like them, but that's because i'm a lazy tech head, but just like high end robot vacuums they seem like one of those things that you spend good money on, they work reasonably well for a while, then break and are unfixable and the company behind them doesn’t help.

that said.. there is a decent crossover in the region of "lazy tech head" and "enough disposable income" that would use a robot mower on a small lawn.

It depends on what you mean by robotic mowers. If you mean motors that drive the wheels and you don't have to walk behind them (or sit on them), yes, these exist without any cloud service. However, if you mean autonomous, then I don't think those are here yet. The non-cloud robot mowers use human held remote controls.

I can think of one that is autonomous and doesn't require the cloud for operation, but does require the cloud for the inital setup and mapping. Once it has the map loaded in, it doesn't need an internet connection.

I self host and run a considerable amount of open source software, locally and through a remote VPS.

Knowing how much I tinker and mess with configs and settings until breaking things usually, this would not be a good idea for me.

Not a direct answer to your question but the first step in replacing a lawn with a garden the nodig way is to cover the grass with something like cardboard and then cover the cardboard with as much as 12 inches of woodchips.

You can get the woodchips for free most of the time as arborists need places to dump. Try to be careful of the type of tree however as some trees have a higher activity than others.

https://openmower.de/

Here is the github: https://github.com/ClemensElflein/OpenMower

Been following them for a bit, was going to build one a few years back, but instead bought a riding mower to pull double duty on teaching my daughter driving skiils

I have the parts together for converting an older Ryobi cordless. Couple of DC motors and a Beaglebone Y-AI for the realtime RF5 controllers along with an ardusimple rtk gps. That might end up being a winter project.

I've built a self driving GPS for a tractor so this shouldn't be too much of a lift.

... I have no idea but I would imagine there's a large overlap with the vacuums

It's important to me to use devices and services that are local only, but I could only find such robot mowers that are beyond my skillset to build. I have no interest in building and 3d printing and flashing firmware, etc. I just want to buy a device and use it, without my privacy being sold. I'm willing to pay, but I guess there's not enough market for anyone to build/sell that.

Same with vacuums, by the way. I have a dreametech model that's supported by Valetudo, but the instructions to flash it sounded difficult and risky enough that I just use it as is, with my home map (and whatever other data it gleans) going through Dreametech's servers and being sold to whomever.

Sad.

Not sure "selfhosted" is the right term here, but a Quick Search™ for "opensource lawnmower" returns this:

https://github.com/ClemensElflein/OpenMower and https://openmower.de/

https://openmower.de/

I might just deal with the heat and get a push mower

You're a better man than I Gunga Din. I got up at 5:00 AM the other day and cut grass. I've got a lot of lawn, so I've got a 54" Toro ZTR and a bush hog for the tractor. It's 109 F in the shade, and the 'feels like' temp is probably hotter than Beelzebub's ball sack. There's be no way I'd push it.

I wish openmower supported more HW.

There's also Vitulus at https://lacina.dev/ that seems like it has potential, but I haven't looked too deeply at what state it's in.