天空вℓσи∂ @skyblond@qoto.org

Setting up a NUC for my friend. I was plan to use some off the shelf solutions like truenas or something, until he told me the demand.

He want a usable linux desktop, while it also provides a way for accessing remotely andprivately. Also he want a media center and a storage device. And it would be so great if I can somehow put a software router in it too.

So I decide to go with opensuse Tumbleweed with Gnome Wayland. Setting up a proxy would ease the internet issues. Then, I use tailscale for private remote access and plex for media center. I also installed cockpit for management (so I can know what's going on if something going wrong in the future).

There are a lot of changes to the original plan. And mostly because I don't know how to create a bridge using want interface under network manager (I'd prefer wicked), so the kvm and openwrt will not run on this nuc.

The plex is a huge pain too. It keeps failing to scan the files and turns out it's me forgetting to change the permissions. I eventually setup a cron script running every minute to apply 777 to that folder, hopefully won't cause performance issue.

Also, btrfs support from opensuse is great. If something goes wrong, I can told him just boot from a previous working snapshot.

llama 2 13b chat f16 model show off.

That's brilliant!

Can't imagine that's running on my laptop. That excitement reminds me of the time when I make a LED blinking using C51 when I was 12.

Switched to 13B chat f16, it can speak Chinese!!!!!

Well, Chinese is very slow, I think it might due to token related issues. I guess it treat each character as a token

I'm sure facebook/meta still has a long way to go.

I never expected to be denied by a LLM.😂

Seriously?

Room temperature.

“compromise”

Considering I don't write a lot these days, I eventually replaced the carbon black ink with this cartridge ink. It's not good (in terms of visual and my personal preference), but it won't dry in the pen and cause a lot of problems and potentially kill the pen.

I think that's the best I can get. The raw image is ~90MB, and the picture 1 is jpg compressed (~5MB). And the Picture 2 is decoded from picture 1.

For this picture, I only modified Y channel, since UV channel will affect the color and 8x8 block with "wrong" color is super sus.

Also, the way I hide bits into S matrix of SVD is a kind of quantization. With d = 46, bit 0 is `[floor(v / d) + 0.25] * d`, and bit 1 is `[floor(v / d) + 0.75] * d`. A bigger d will result banding and low picture quality. But smaller d won't encode info well.

You have to subscribe to YouTube premium to use the screen lock feature? (The feature to prevent false touch when watching videos).

If you have to subscribe to the premium plan to get high bitrate videos, that's acceptable. But screen lock? VLC has this feature for years, and it's free of charge.

Google, really? 🤔

Tried to implement a paper based on its abstract, because I'm not willing to pay 40 USD. The result is a mix of success and failure.

The paper introduced a steganography called DWT-DCT-SVD, which is applying DWT to a picture and then applying DCT and finally encoding bits into the S matrix of the SVD operation.

The first picture is encoded picture after jpeg compression (photoshop, quality 8, raw picture is 90MB in png), picture 2 is the intended decoded result, and picture 3 is the jpeg decoded result. I would say not bad...

... unless you zoom in on the picture and notice there are a lot of stripes giving off the fact that this picture is suspicious (picture 4).

Even after 5 years, Detroit: Become human is still a great game to enjoy.

And let chatgpt playing it just take the game to a higher level.

Also, I feel like it's a very old game (decades ago), but actually just 5 years ago. hmmmm

Samsung dex really amazed me.

If I don't write code and do not need special things (like working with LaTeX or something), in most cast, you can live with a android device. I though android phones are just phones, cannot replace a PC. but now I finnally understand why people don't need a laptop/PC anymore.

But I still miss my spell check plugin (This post is written without any tech assist, hope you can still read what I typed, because I think I made a lot of typo and grammar mistakes).

For now, I'll stay with those clamps. It's better than epoxy.

F*ck

The epoxy works pretty well on this metal bar, but plastic is totally sh*t.

Thankfully, I ordered another epoxy that claimed is "made in Swiss", and it should arrive tomorrow. That's the last chance, for both this chair and my exhausted work.

Chair, with unbreaking 1.5

Today is 40C outside (35C indoor), and the epoxy is drying unexpectedly fast.

Both my laptop and myself are struggling.

I hate XML so much that I didn't want to keep implementing the webdav server.

And my laptop is struggling with the temperature. The room temperature is 33C with no air conditioning, and I have to limit the CPU clock to 1.6GHz to prevent overheating and thermal throttling. And my IDEA is just unresponsive in such a low freq, without mentioning 39 chrome tabs running in the background.

Unexpected blue screen. It suggests hardware issues and happens frequently today.

I skipped the ram test because Microsoft said it takes several minutes, but actually takes several hours (64GB).

Each time the system crashes, the foreground process is unresponsive and followed by high disk usage. I enabled bitlocker on my c drive, and it failed to mount in my win to go system (I prepared for emergency), thus it indicates the drive might have a problem (but the smart report everything is ok).

Currently, I'm recovering the encrypted data from the c drive. Then, test the ram and see what's going wrong.

I know how to speak, but I don't know what to speak 🤔

When you only need 1 but the minimum quantity is 100.

What do I do with 99 nuts?