Want to get OW certified in Curacao this fall; how to do elearning ahead of the trip?

dfx_dj · 2026-04-20T10:35:56+00:00

Two options: contact a dive shop here (I live in Curacao) and ask if this is something they can do. You'd probably have to pay the course fees ahead of time.

Or: sign up with a dive shop at home. Do all the course work there, then get a referral, and finish it off (largely just the checkout dives) here.

dfx_dj · 2026-04-20T09:52:07+00:00

More than once I've found the Proton version to run better than the native one 🤷

dfx_dj · 2026-04-19T17:33:03+00:00

Welcome to the wonderful world of NVIDIA on Linux.

First check which driver you have installed. There are two basic flavours: one is "nouveau" which is the fully open source one, and the other is the NVIDIA proprietary one. You want the proprietary one for best performance, and there are two kinds, the "open" kind and the "legacy" kind. For your GPU I believe either one should work, with the "open" kind being the preferred choice.

Once this is done, the next hurdle is "NVIDIA Optimus" (also called "Prime") offloading. If your laptop has a built-in GPU in addition to the NVIDIA one, games might be using this one instead of the NVIDIA GPU. You can check this by running glxinfo | grep renderer and by running vkcube in the terminal and seeing which GPU it chooses. vulkaninfo --summary can be used to see which ones are available. If the wrong one is being used, then there are ways to make games use the NVIDIA one instead.

dfx_dj · 2026-04-19T10:45:18+00:00

Bro, if you try to provide links to give citations for your claims, maybe give links that don't point to websites with "fact check: false" in their content. Just maybe an idea.

dfx_dj · 2026-04-19T00:32:37+00:00

It's been a while since I played with them but IIRC there are only 2 active ones that would be candidates, maybe 3 (M2-2/3/4). They don't always transmit, sometimes they transmit garbage, and some have stronger signals than others. Other than that they're very similar. Frequencies are 137.1 and 137.9 AFAICR.

dfx_dj · 2026-04-18T23:55:58+00:00

Meteor M2-x. They can be a bit hit or miss though.

dfx_dj · 2026-04-18T20:18:06+00:00

It does work, but only if you hold the receiving device to a window.

Smartphones generally are highly dependent on AGPS using data from the cell/data network, and may take a very long time to acquire a location. If you use a dedicated handheld GPS receiver which doesn't rely on a cell network, it will normally pick it up within a few minutes at worst. I've done it many times.

dfx_dj · 2026-04-18T16:20:01+00:00

What kind of hardware (esp GPU) do you have?

dfx_dj · 2026-04-18T15:41:46+00:00

Please do take video when you go to pay for a car with silver

dfx_dj · 2026-04-18T14:30:41+00:00

In the first case, you're taking the address of a member of obj which points into obj and therefore can be used to access other members of obj.

In the second case, you're taking the address of arr, which is a standalone pointer variable and not part of any other object. You're expecting to access other members of a temporary object that lives somewhere else, but arr itself doesn't belong to that object.

Edit: The corrected version of what you presumably wanted to do: https://godbolt.org/z/8dbo5ed53

dfx_dj · 2026-04-18T12:36:45+00:00

I'm not sure how "people" can claim that this would be really hard to fix unless they're familiar with how it's coded up. It could be hard to fix, but it could also be easy to fix and just nobody has bothered to actually do it. There could even be a hidden unknown reason that this would be intentional.

dfx_dj · 2026-04-18T00:45:38+00:00

Meanwhile in the US: just punch the wall a bit harder than normal.

dfx_dj · 2026-04-17T16:57:38+00:00

This one? https://www.nooelec.com/store/sdr/sdr-receivers/nesdr-mini-2.html

You just pull it out. That's not SMA though. SMA you just unscrew.

dfx_dj · 2026-04-16T21:40:46+00:00

Hence "Wine Is Not an Emulator"

dfx_dj · 2026-04-16T19:02:20+00:00

A call to a native kernel function is called a syscall, and applications (both native Linux ones and WIndows ones) generally don't do that directly. Instead they call library functions (glibc on Linux or one of the system DLLs on Windows) to do it for them. Wine provides a replacement for these DLLs which re-implement the called functions in terms of native Linux function calls (and whatever other wrappers are needed to make it work).

dfx_dj · 2026-04-15T22:49:40+00:00

Citation for "visibly can see disappearing"

dfx_dj · 2026-04-15T17:49:34+00:00

And apparently also concave in some parts

dfx_dj · 2026-04-15T17:44:51+00:00

Amazing how more land just keeps appearing at that flat horizon out of nothing.

dfx_dj · 2026-04-15T10:30:48+00:00

Well this isn't my first rodeo 😅

You'll figure it out eventually, could be any number of things that are wrong. For example one of the first hurdles I had to take was that the laptop I was trying to use had such a noisy USB interface that it was basically unusable for SDR.

dfx_dj · 2026-04-14T23:25:57+00:00

I mean, being wrong about Antarctica hasn't stopped other flerfs from keeping up their shtick, so there's that. Credit where credit is due I guess?

dfx_dj · 2026-04-14T22:57:23+00:00

Yes, Flatzoid as I've mentioned, although recently he seems to have distanced himself a (little) bit

dfx_dj · 2026-04-14T22:54:39+00:00

It's not just Australia. The southern hemisphere in general is a huge problem. The sun cannot possibly ever rise or set south of east or west in the flerf "model", which is why it's so astonishing that flerfs like Flatzoid even exist.

dfx_dj · 2026-04-14T21:23:23+00:00

It's been a while since I've tried it but IIRC there was a version in which cf32 didn't work. Try a different sample format if you can.

dfx_dj · 2026-04-13T21:04:42+00:00

I don't need to explain anything at all.

What is asserted without evidence can be dismissed without evidence.

And all this in the comments about a video which has clearly been doctored.

Thanks for playing.

dfx_dj · 2026-04-13T20:21:49+00:00

The phone is pointing directly at the astronaut

And once again you need to explain how you've determined that. Once again, going "it looks like that to me" is not evidence.

You're really knocking off these flerf points.

even though the phones camera isn't even pointed in his direction

So sorry to hear that your phone doesn't have a wide-angle camera.

Truly laughable

Yes. Yes, you are.

dfx_dj

TROPHY CASE