- 1 Post
- 25 Comments
Most anti-car people are in favor of improving public transit options.
hedgehog@ttrpg.networkto Selfhosted@lemmy.world•How do I securely host Jellyfin? (Part 2)English5·28 days agoWow, there isn’t a single solution in here with the obvious answer?
You’ll need a domain name. It doesn’t need to be paid - you can use DuckDNS. Note that whoever hosts your DNS needs to support dynamic DNS. I use Cloudflare for this for free (not their other services) even though I bought my domains from Namecheap.
Then, you can either set up Let’s Encrypt on device and have it generate certs in a location Jellyfin knows about (not sure what this entails exactly, as I don’t use this approach) or you can do what I do:
- Set up a reverse proxy - I use Traefik but there are a few other solid options - and configure it to use Let’s Encrypt and your domain name.
- Your reverse proxy should have ports 443 and 80 exposed, but should upgrade http requests to https.
- Add Jellyfin as a service and route in your reverse proxy’s config.
On your router, forward port 443 to the outbound secure port from your PI (which for simplicity’s sake should also be port 443). You likely also need to forward port 80 in order to verify Let’s Encrypt.
If you want to use Jellyfin while on your network and your router doesn’t support NAT loopback requests, then you can use the server’s IP address and expose Jellyfin’s HTTP ports (e.g., 8080) - just make sure to not forward those ports from the router. You’ll have local unencrypted transfers if you do this, though.
Make sure you have secure passwords in Jellyfin. Note that you are vulnerable to a Jellyfin or Traefik vulnerability if one is found, so make sure to keep your software updated.
If you use Docker, I can share some config info with you on how to set this all up with Traefik, Jellyfin, and a dynamic dns services all up with docker-compose services.
Look up “LLM quantization.” The idea is that each parameter is a number; by default they use 16 bits of precision, but if you scale them into smaller sizes, you use less space and have less precision, but you still have the same parameters. There’s not much quality loss going from 16 bits to 8, but it gets more noticeable as you get lower and lower. (That said, there’s are ternary bit models being trained from scratch that use 1.58 bits per parameter and are allegedly just as good as fp16 models of the same parameter count.)
If you’re using a 4-bit quantization, then you need about half that number in VRAM. Q4_K_M is better than Q4, but also a bit larger. Ollama generally defaults to Q4_K_M. If you can handle a higher quantization, Q6_K is generally best. If you can’t quite fit it, Q5_K_M is generally better than any other option, followed by Q5_K_S.
For example, Llama3.3 70B, which has 70.6 billion parameters, has the following sizes for some of its quantizations:
- q4_K_M (the default): 43 GB
- fp16: 141 GB
- q8: 75 GB
- q6_K: 58 GB
- q5_k_m: 50 GB
- q4: 40 GB
- q3_K_M: 34 GB
- q2_K: 26 GB
This is why I run a lot of Q4_K_M 70B models on two 3090s.
Generally speaking, there’s not a perceptible quality drop going to Q6_K from 8 bit quantization (though I have heard this is less true with MoE models). Below Q6, there’s a bit of a drop between it and 5 and then 4, but the model’s still decent. Below 4-bit quantizations you can generally get better results from a smaller parameter model at a higher quantization.
TheBloke on Huggingface has a lot of GGUF quantization repos, and most, if not all of them, have a blurb about the different quantization types and which are recommended. When Ollama.com doesn’t have a model I want, I’m generally able to find one there.
I recommend a used 3090, as that has 24 GB of VRAM and generally can be found for $800ish or less (at least when I last checked, in February). It’s much cheaper than a 4090 and while admittedly more expensive than the inexpensive 24GB Nvidia Tesla card (the P40?) it also has much better performance and CUDA support.
I have dual 3090s so my performance won’t translate directly to what a single GPU would get, but it’s pretty easy to find stats on 3090 performance.
hedgehog@ttrpg.networkto politics @lemmy.world•Contempt as Trump claims he can run for third term: ‘This is what dictators do’1·1 month agoNot directly, but indirectly. You gerrymander the district-based positions, which allow you to pass legislation enabling you to suppress enough votes to win the statewide elections, too.
hedgehog@ttrpg.networkto politics @lemmy.world•Contempt as Trump claims he can run for third term: ‘This is what dictators do’1·1 month agoThat sounds like something someone who’s never heard of gerrymandering or voter suppression would say.
hedgehog@ttrpg.networkto World News@lemmy.world•Long COVID costs countries billions of dollarsEnglish7·1 month agoFrom https://www.yalemedicine.org/news/covid-vaccines-reduce-long-covid-risk-new-study-shows
At the pandemic’s onset, approximately 10% of people who suffered COVID-19 infections went on to develop Long COVID. Now, the risk of getting Long COVID has dropped to about 3.5% among vaccinated people (primary series).
…
Then, the team conducted analyses to uncover the reasons for the observed decline in Long COVID cases from the pre-Delta to Omicron eras. About 70% of the decline was attributable to vaccination, they found.
Per OP, the second post is directing to something different. It’s duplicated visually but not an actual duplicate.
hedgehog@ttrpg.networkto 3DPrinting@lemmy.world•Trouble keeping a top-heavy TPE part on the bedEnglish2·1 month agoTo be clear, I’m measuring the relative humidity of the air in the drybox at room temp (72 degrees Fahrenheit / 22 degrees Celsius), not of the filament directly. You can use a hygrometer to do this. I mostly use the hygrometer that comes bundled with my dryboxes (I use the PolyDryer and have several extra PolyDryer Boxes, but there are much cheaper options available) but you can buy a hygrometer for a few bucks or get a bluetooth / wifi / connected one for $15-$20 or so.
If you put filament into a sealed box, it’ll generally - depending on the material - end up in equilibrium with the air. So the measurement you get right away will just show the humidity of the room, but if the filament and desiccant are both dry, it’ll drop; if the desiccant is dry and the filament is wet, it’ll still drop, but not as low.
Note also that what counts as “wet” varies by material. For example, from what I’ve read, PLA can absorb up to 1% or so of its mass as moisture, PETG up to 0.2%, Nylon up to 7-8%… silica gel desiccant beads up to 40%. So when I say they’ll be in equilibrium, I’m referring to the percentage of what that material is capable of absorbing. It isn’t a linear relationship as far as I know, but if it were, that would mean that: if the humidity of the air is 10% and the max moisture the material could retain is 1%, then the material is currently retaining 0.1% moisture by mass. If my room’s humidity is kept at 40%, it’ll absorb moisture until it’s at 0.4% moisture by mass.
That said, this doesn’t measure it perfectly, since while most filament materials absorb moisture from the air when the humidity is higher, they don’t release it as easily. Heating it both allows the air to hold more moisture and allows the filament (and desiccant) to release more moisture.
hedgehog@ttrpg.networkto Selfhosted@lemmy.world•Potpie : Open source prompt-to-agent for your codebase.English3·1 month agoThe above post says it has support for Ollama, so I don’t think this is the case… but the instructions in the Readme do make it seem like it’s dependent on OpenAI.
hedgehog@ttrpg.networkto 3DPrinting@lemmy.world•Trouble keeping a top-heavy TPE part on the bedEnglish5·1 month agoWhat have you done to clean the bed? From the link to the textured sheet, you should be cleaning it between every print - after it cools - with 90% IPA, and if you still have adhesion issues, you should clean it with warm water and a couple drops of dish soap.
Has the TPU been dried? I don’t normally print with TPU but my understanding is that it needs to be lower humidity than PLA; I use dryboxes for PLA and target a humidity of 15% or lower and don’t use them if they raise above 20%. The recommendation I saw for TPU was to dry it for 7 hours at 70 degrees Celsius, to target 10% humidity (or at least under 20%) and to print directly from a drybox. Note that compared to other filaments, TPU can’t recover as well from having absorbed moisture - if the filament has gotten too wet, it’ll become too brittle if you dry it out as much as is needed. At that point you would need to start with a fresh roll, which would ideally go into a dryer and then drybox immediately.
You should be able to set different settings for the initial layer to avoid stringing, i.e., slower speeds and longer retraction distance. It’s a bit more complicated but you can also configure the speed for a specific range of layers to be slower - i.e., setting it to slow down again once you get to the top of the print. For an example of that, see https://forum.prusa3d.com/forum/prusaslicer/bed-flinger-slower-y-movement-as-function-of-z/
What’s the max speed you’re printing at? My understanding is that everything other than travel should all be the same speed at a given layer, and no higher than 25 mm/s. And with a bed slinger I wouldn’t recommend a much higher travel, either.
In addition to a brim, have you tried adding supports?
hedgehog@ttrpg.networkto Selfhosted@lemmy.world•Do I really need a firewall for my server?English3·2 months agoAre you saying that NAT isn’t effectively a firewall or that a NAT firewall isn’t effectively a firewall?
hedgehog@ttrpg.networkto Selfhosted@lemmy.world•Someone help me understand the sonarr to jellyfin workflowEnglish3·2 months agoIs there a way to use symlinks instead? I’d think it would be possible, even with Docker - it would just require the torrent directory to be mounted read-only in the same location in every Docker container that had symlinks to files on it.
hedgehog@ttrpg.networkto Selfhosted@lemmy.world•Plex is locking remote streaming behind a subscription in AprilEnglish1·2 months agoDepending on setup this can be true with Jellyfin, too. I have a domain registered, use dynamic DNS, and have Traefik direct a subdomain to my Jellyfin server. My mobile clients are configured using that. My local clients use the local static IP.
If my internet goes down, my mobile clients can’t connect, even on the LAN.
hedgehog@ttrpg.networkto General Discussion@lemmy.world•Does driving a Tesla justify being victimized?15·2 months agoIf you do not understand why this is inappropriate you are the problem.
Was it inappropriate for Elon Musk’s company to not properly secure the data of its customers? I would say so. It would therefore be appropriate for anyone harmed as a result to sue Tesla - or Elon directly - for any damages they suffered.
hedgehog@ttrpg.networkto General Discussion@lemmy.world•My experience with a new (to me ) Amazon scam4·2 months agoWasn’t the estimated delivery date much sooner when you first placed the order? Per Amazon’s stated policy, you should be eligible for refund three days after that date.
Obviously it would be preferable for you to get it even sooner, but that’s still a lot better than two months from now.
If you have an email or any record of the original estimated date, contact Amazon CS and reference that. Don’t even mention the changed delivery - that’s not your problem, as you didn’t agree to a changed delivery date; you were promised delivery three days ago and haven’t received it.
hedgehog@ttrpg.networkto Technology@lemmy.world•In 2025, People Will Try Living in This Underwater HabitatEnglish15·4 months agoGiant squids are the bears of the ocean
hedgehog@ttrpg.networkto No Stupid Questions@lemmy.world•How do you bond with family members with whom you have 0 shared hobbies/interests & completely different personalities?1·4 months agoThere’s no need to bond with your own child?
hedgehog@ttrpg.networkto No Stupid Questions@lemmy.world•If billionaires and CEOs feel like they need to start paying for large security details, would that be an example of trickle down economics?8·5 months agoNo. Trickle down economics refers to things that benefit the wealthy (mostly government policies, particularly related to taxes and subsidies) that will allegedly benefit everyone by “trickling down.” Supply-side economics are an example of trickle-down economics. Trickle-down economic policies have been shown to effectively increase income inequality and studies suggest a link between them and reduced overall growth.
Giving the wealthy tax breaks in the hopes that they’ll spend the extra money they have available on security details, on the other hand, would be an example of trickle down economics.
I’d just like to interject for a moment. What you’re referring to as Alpine Linux Alpine Linux is in fact Pine’s fork, Alpine / Alpine Linux Pine Linux, or as I’ve taken to calling it, Pine’s Alpine plus Alpine Linux Pine Linux. Alpine Linux Pine Linux is an operating system unto itself, and Pine’s Alpine fork is another free component of a fully functioning Alpine Linux Pine Linux system.