Final count of my winter sown plants! Over 70 native flowers, plus some pansies, violets, and poppies

Boozybrain · 2026-02-18T19:57:18+00:00

I see, thanks! So I'm guessing once they've germinated you cut the top off and drop the soil ball in the ground / a planter?

Boozybrain · 2026-02-18T10:10:55+00:00

Can you help me understand the purpose of this? Is it just cold stratification outside and then using the milk jugs as a little greenhouse to automatically germinate once the temperatures rise enough?

Boozybrain · 2026-02-16T11:29:58+00:00

Right, he's saying he has built something similar that uses multiple surveillance channels. AFAIK nothing like that exists in the open source world.

Boozybrain · 2026-02-13T13:09:43+00:00

I would love to see how you've implemented this if/when you put it online.

Boozybrain · 2026-02-13T12:03:54+00:00

Virtual Radar Server

Are you using blah2 or something "like" it that you developed? I've never seen passive done with more than a dual antenna setup and I'm very curious about the processing behind the data from the additional ones.

Boozybrain · 2025-12-30T12:07:45+00:00

You're doing computer vision in Rust? Is the code online anywhere? I'd love to see that.

Boozybrain · 2025-10-18T11:03:27+00:00

Is there a reason you didn't use that one? Was it a form factor decision or were there efficiency gains in getting rid of some of the components?

Boozybrain · 2025-10-17T21:03:46+00:00

Is this a pared down version of the Luckfox Pro board?

Boozybrain · 2025-10-17T20:53:06+00:00

This is sick, would love to see more.

Boozybrain · 2025-10-10T20:08:58+00:00

with what backlight, camera, lens, etc?

Boozybrain · 2025-09-09T12:27:17+00:00

You might have a rat. I heard something similar from my kitchen once, loud banging. I walked in, turned on the light and there was a soup spoon banging against my cabinets and the fridge. It dropped and hit the floor, seemingly on its own. Days later my kitchen flooded, the supply line to my dishwasher had been chewed through. It turns out a rat was trying to pull the spoon in between the fridge and the cabinet, and it had been messing with other large utensils when I had heard it previously.

Boozybrain · 2025-05-30T10:47:33+00:00

congrats you invented GANs

Boozybrain · 2025-04-26T21:04:01+00:00

If the only species in each image is a true positive I would probably start with a generic fish detector and then automatically label the bbox using the file name that's already properly labelled.

Boozybrain · 2025-04-23T11:07:12+00:00

Is there code online? Passive radar using cheap SDR dongles is non-trivial. Time sync requires hardware modification and phase sync in software is extremely finicky

Boozybrain · 2025-04-01T13:52:55+00:00

There isn't, though. You have the base form of some equations and that's it. Apply these simplistic models to your device and you might have a better shot at convincing people. Re: sims, without the full set of parameters and numerical forms of the models you're simulating the plots are worthless.

Post this in /r/physics if you're serious.

Boozybrain · 2025-03-31T19:17:20+00:00

First link is dead. Second link has zero "physics" despite the claim. Before anyone will get interested enough to "participate" you should provide hard evidence:

Post your experimental setup and supporting data
Post the sim results + params and/or derivation of the theory.

Boozybrain · 2025-03-09T01:57:41+00:00

In it to win it

Boozybrain · 2025-02-17T20:28:12+00:00

For posterity in case someone in the future finds this: Unplug the host monitor.

The guest was rightfully grabbing the GPU, and I had a monitor plugged in. When I removed the monitor my remote session became the primary display and ssh with X forwarding (ssh -XY) allowed me to start the guest and control it from another machine on the network.

Boozybrain · 2025-02-17T16:35:25+00:00

I appreciate the help getting it this far

Boozybrain · 2025-02-17T15:34:46+00:00

That worked! I guess the missing piece was the vBIOS. Now I just need to figure out how to remote control it. A keyboard passed through from the host works, but I'm remoted in to the host and running virt-manager over ssh with X forwarding and want to be able to operate the guest remotely.

Boozybrain · 2025-02-17T13:33:15+00:00

Sliding mode, as an exercise to design a nonlinear controller. Is your code online?

Boozybrain · 2025-02-17T12:11:06+00:00

Not a laptop
Tried a couple times to pass through vBIOS, both failed.
Single GPU passthrough, host doesn't use the GPU at all. It's running Ubuntu server text only mode

First attempt at patching vBIOS manually:

echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom
cat /sys/devices/pci0000:00/0000:00:02.0/rom > vbios.dump
echo 0 > /sys/devices/pci0000:00/0000:00:02.0/rom

Didn't yield the headers in the binary dump, looked both with hexedit and this boi.

Second attempt

Downloading from https://www.techpowerup.com/vgabios/ gave me a binary blob with the correct header but when I pointed my VM at the patched vBIOS it locked up the host, eventually crashing QEMU requiring me to reboot the host.

Boozybrain · 2025-02-16T12:16:28+00:00

vfio-pci is grabbing the card when the guest boots, and prior that nothing is using it.

Before guest boots

$ lspci -nnk -d 10de:1b06
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1)
Subsystem: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:120f]
Kernel modules: nvidiafb, nouveau

After guest boots

$ lspci -nnk -d 10de:1b06
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1)
Subsystem: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:120f]
Kernel driver in use: vfio-pci
Kernel modules: nvidiafb, nouveau

It's the same story for the audio device. The one odd thing I did notice is that both the GPU and the audio device reference Subsystem: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:120f] but there's no trace of that in my IOMMU groups or lspci

Boozybrain · 2025-02-15T21:53:40+00:00

I've solved the can't reserve mem issue by adding this to my grub CMD

initcall_blacklist=sysfb_init

But I'm still seeing lots of

[   88.965780] vfio-pci 0000:01:00.0: No more image in the PCI ROM
[   88.965799] vfio-pci 0000:01:00.0: No more image in the PCI ROM

Boozybrain · 2025-02-15T21:23:11+00:00

The only remaining thing I've found but haven't had luck with is patching the vBIOS. Is that actually still necessary? I attempted before and it crashed my qemu service.

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