teruakohatu (u/teruakohatu)

teruakohatu commented on Show HN: Clearcam – Add AI object detection to your IP CCTV cameras github.com/roryclear/clea... · Posted by u/roryclear

formichunter · an hour ago

I have been trying to tackle this type of "Feature" but object detection and action detection seem to be a totally different problem. Use case: I want to "detect" when a car does not stop at a stop sign. I have researched this over youtube, reddit, etc and other than training it myself there are no models already out there, including YOLO. Can anybody offer advice on how to achieve this use case?

teruakohatu · an hour ago

Try building up a method iteratively. Start by calculating the speed of a car as it crosses the camera frame.

Then try calculating the speed between two points (in car length in front of and a car length behind the stop sign).

Then set a threshold for how fast is too fast for a car to realistically go between those two points without stopping. Get notified with a video snippet when a car is above this threshold. Adjust the threshold based on the videos you are capturing.

It won’t work if your object detection is not running at your camera framerate.

teruakohatu commented on Trees on city streets cope with drought by drinking from leaky pipes newscientist.com/article/... · Posted by u/bookofjoe

aziaziazi · 16 hours ago

OP numbers aren’t only a city problem, IIRC [0] the numbers are close here in France. There’s a startup that try to tackle it : www.leakmited.com/en I applied there 3 month ago and they never responded. Can’t blame them but I’m a bit sad: it’s the dream impact-job.

[0] 20% apparently https://www.eaufrance.fr/repere-rendement-des-reseaux-deau-p...

teruakohatu · 3 hours ago

I wouldn’t be too sad. There are lots of companies offering ML leak detection. Most or many are using fibre optics and using them to detect changes in temperature or noise along the line. Sample the signal for period of time and run it through a model and you have leak detection.

teruakohatu commented on The West is bored to death newstatesman.com/ideas/20... · Posted by u/CharlesW

teruakohatu · a day ago

> Just a few short years ago, everyone was advised to “learn to code”, regardless of where their real interests might lie. Yet now, we are told, this is one area where large language models already excel. Will some share of the hundreds of billions of dollars being invested into Stem be reallocated toward rescuing the humanities – the one set of disciplines whose value does not depend entirely on unforeseeable macroeconomic contingencies? We shouldn’t hold our breath.

This is an odd statement, and probably reflects the authors own anxieties.

teruakohatu commented on The Minecraft Code (2024) [video] youtube.com/watch?v=nz2Le... · Posted by u/zichy

djmips · 3 days ago

Telling people they should not try and crack something is kind of like the Streisand effect.

teruakohatu · 3 days ago

> Telling people they should not try and crack something is kind of like the Streisand effect.

More like a reverse-streisand effect. They were honest about the contents of the file, it was Minecraft 1.0 and not interesting, but the community didn't accept the explanation.

teruakohatu commented on Claudia – Desktop companion for Claude code claudiacode.com/... · Posted by u/zerealshadowban

zerealshadowban · 8 days ago

Claudia is open-source, made by a S24 YC company https://www.ycombinator.com/companies/asterisk

teruakohatu · 7 days ago

Wow, I thought it was an official app. Now I wonder what telemetry or even conversation data I have just sent offsite.

As others have said, this is a giant red flag.

teruakohatu commented on Streaming services are driving viewers back to piracy theguardian.com/film/2025... · Posted by u/nemoniac

mattbee · 11 days ago

Absolutely right!

A week ago I downloaded a couple of movies and shows from Netflix for my 6yo daughter, to watch on a 3hr flight. Worked nicely!

Today we made the return flight. She opens Netflix, and ⅔ of the films have now "expired" with no notice and she can't watch the one she wanted.

For the next flight I'll remember to pirate!

teruakohatu · 11 days ago

> She opens Netflix, and ⅔ of the films have now "expired"

I have given up saving Netflix titles in advance of travel because this has happened to me too many times. What is bizarre is you can only "download" them a certain number of times, despite being expired. So I now cannot download some shows ever again.

Nobody loses money if I cache a Netflix show to my device. The limitation is bizarre.

teruakohatu commented on Nginx introduces native support for ACME protocol blog.nginx.org/blog/nativ... · Posted by u/phickey

Jnr · 11 days ago

When setting up the API key, use the "Select zones to include or exclude." section. Works fine on the free account.

teruakohatu · 11 days ago

I should have clarified, you can’t for subdomains on a non-enterprise account.

teruakohatu commented on Nginx introduces native support for ACME protocol blog.nginx.org/blog/nativ... · Posted by u/phickey

andreashaerter · 12 days ago

CNAMEs. I do this for everything. Example:

1. Your main domain is important.example.com with provider A. No DNS API token for security.

2. Your throwaway domain in a dedicated account with DNS API is example.net with provider B and a DNS API token in your ACME client

3. You create _acme-challenge.important.example.com not as TXT via API but permanent as CNAME to _acme-challenge.example.net or _acme-challenge.important.example.com.example.net

4. Your ACME client writes the challenge responses for important.example.com into a TXT at the unimportant _acme-challenge.example.net and has only API access to provider B. If this gets hacked and example.net lost you change the CNAMES and use a new domain whatever.tld as CNAME target.

acme.sh supports this (see https://github.com/acmesh-official/acme.sh/wiki/DNS-alias-mo... this also works for wildcards as described there), most ACME clients do.

I also wrote an acme.sh Ansible role supporting this: https://github.com/foundata/ansible-collection-acmesh/tree/m.... Example values:

  [...]
  # certificate: "foo.example.com" with an additional "bar.example.com" SAN
  - domains:
    - name: "foo.example.com"
      challenge:  # parameters depend on type
        type: "dns"
        dns_provider: "dns_hetzner"
        # CNAME _acme-challenge.foo.example.com => _acme-challenge.foo.example.com.example.net
        challenge_alias: "foo.example.com.example.net"
    - name: "bar.example.com"
      challenge:
        type: "dns"
        dns_provider: "dns_inwx"
        # CNAME _acme-challenge.bar.example.com => _acme-challenge.example.net
        challenge_alias: "example.net"
  [...]

teruakohatu · 11 days ago

This has blown my mind. Its been a constant source of frustration since Cloudflare stubbornly refuses to allow non-enterprise accounts to have a seperate key per zone. The thread requesting it is a masterclass in passive aggressiveness:

https://community.cloudflare.com/t/restrict-scope-api-tokens...

teruakohatu commented on Historical Tech Tree historicaltechtree.com/... · Posted by u/louisfd94

umanwizard · 17 days ago

Good idea, it sounds plausible! But it still leaves open the question of how oil lamps were invented. How did someone figure out that a wick would be helpful?

teruakohatu · 17 days ago

Rope was around long before the wick. It seems conceivable that rope shavings or pieces or old rope were an easy way to start a fire.

This was then used with oil to make an even better fire starter or means of transferring fire. Eventually someone realises that a rope soaking in oil is easily lit and sustains a flame.

teruakohatu commented on Flipper Zero dark web firmware bypasses rolling code security rtl-sdr.com/flipperzero-d... · Posted by u/lq9AJ8yrfs

leoedin · 17 days ago

> One could also argue that criminals being able to steal parked cars is safer over all for society as they then don't feel the need to car jack you while you are actually in the vehicle.

Here in the UK vehicle theft reached an all time low in 2014. It’s doubled since then. If there was an increase in car jacking it must have been minescule by comparison. It’s not really a crime that happens here.

I had an old beater van that got stolen. It turned out that model was known to be easy to steal. I suspect most car theft is done because it’s easy and fairly low risk. Walk up to a car in the night, fiddle around for a few minutes and drive off.

I still drive a car with a key. It’s completely fine. Who actually asked for keyless entry?

teruakohatu · 17 days ago

> Who actually asked for keyless entry?

Probably the vast majority of consumers?

There is no reason why keyless entry cannot be more secure than a physical key, other than incompetence.

The cars stolen in New Zealand are usually, as you say, cars that are known to be easy to enter and drive away. Even then, they break a window. But I have also heard of break-ins at night targeting certain high-end cars and going as far as gaining entry to a garage.