bkettle

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31.
by bkettle 1y ago
To what extent is having a car convenient because we've built our cities under the assumption that people own cars? Where I lived for a year in SF (near Church station) I found that for day-to-day life I never once wished I had a car.
32.
by bkettle 1y ago
I was wondering recently whether someone could conceivably start a disk-in-the-mail Netflix again, now that streaming sucks so much and every publisher seems to want their own streaming service. My understanding (possibly wrong, I'm no
33.
by bkettle 1y ago
The rest of the comment gives some pretty nice examples of how bad cars are from a land use perspective alone
34.
by bkettle 1y ago
When I actually calculate the gas cost for a trip in a car, I am usually surprised at how large it can be. I wouldn’t be surprised if the $3 actually is less than the gas cost for many affected commutes. However I think you are probably rig
35.
by bkettle 1y ago
Riding Caltrain during peak hours is totally fine and not unpleasant at all, particularly with the new trains (I do it most days and am writing this comment while doing so)
36.
by bkettle 1y ago
> So claiming car drivers do not pay the costs is just plain wrong. We can’t determine that that is the case simply because the cost seems like a lot. California has the highest gas taxes in the US, so even if California is correctly pri
37.
by bkettle 1y ago
> “wow, I really can do _anything_ if I can just figure out how Except this time it’s “if I can just figure out how and pay for the Claude API usage”. This is one of the sadder things about AI usage getting more standard that I haven’t s
38.
by bkettle 1y ago
Learning things because they are interesting is reason enough in itself for many people, regardless of any economic benefit.
39.
by bkettle 1y ago
Yes, I’ve done it for a batch of 10 with https://jlcpcb.com/smt-assembly for around $10/board including the PCB
40.
by bkettle 1y ago
For me the “all schedules” link is just the schedule on the official Caltrain website (which I actually quite like)
41.
by bkettle 1y ago
Are you referring to the Jersey City mention when you say counterexample? It’s excellent and absolutely worth celebrating that a US city was able to achieve this for a year, but just like Helsinki’s car-use stats, it was also no fluke: not
42.
by bkettle 1y ago
I made one of these a while ago in school, it was fun! I think it's a great idea. Mine really had nothing: an overly complicated MCU, since it was provided by the class, but otherwise no need for an OS or anything: https://b
43.
by bkettle 2y ago
Most places I've lived (not many) use zones for residential parking so a residential parking permit gives you no right to park a car in residential spaces outside your neighborhood. Regardless, the consideration needs to take into acco
44.
by bkettle 3y ago
Author of the post here, thanks so much for making it available! It’s an excellent library and I was thrilled to find it.
45.
by bkettle 3y ago
Shoot! I'm sorry about that, and thank you for letting me know. I just fixed the issue -- I would love for you to try your post again!
46.
by bkettle 3y ago
Just added it! Feel free to make a post :)
47.
by bkettle 3y ago
Awesome, thanks for the link!
48.
by bkettle 3y ago
I'm not convinced that all of these annoyances are intentional. For example, one post [1] says that it's not clear where to go at the end of a bike path. This could be resolved with a sign that might cost $500 (complete guess) to
49.
by bkettle 3y ago
It might not be! One difference between Little Fixes and 311-like apps is that I want to foster discussion among residents rather than offer a place to file complaints with the city. Most of the apps that I’ve seen don’t allow discussion. P
50.
by bkettle 3y ago
Probably, yes--thanks for the link. Although I am somewhat hesitant to use official administrative boundaries because I feel like perceived boundaries are often different than official boundaries. As someone walking around the Boston area,
51.
Show HN: Little Fixes – a spatial forum to improve your city(littlefixes.xyz)
113 points by bkettle 3y ago|46 comments
52.
by bkettle 3y ago
In general I completely agree that updating infrastructure to create dedicated spaces for non-car modes is the only way forward. But given how politically difficult it is to change--and especially to take away--existing infrastructure, and
53.
by bkettle 3y ago
This was specifically focusing on privilege separation---we don't provide any protection against timing or other side channels, though this work could be combined with existing work around constant-time crypto, etc to get some assuranc
54.
by bkettle 3y ago
Maybe once we replace passwords with FIDO2 more widely and people no longer have to remember and enter their password every time they manually authenticate, we can shorten up session timeouts. Or, as GitHub does, we can require explicit aut
55.
by bkettle 3y ago
Indeed we thought this would be a challenge and I didn’t explain this aspect in the blog post. But on this chip, DMA is its own peripheral and the DMA peripheral is not used by the USB driver. Instead, the USB peripheral and the main CPU sh
56.
by bkettle 3y ago
> At this point everything of value is lost. With FIDO2 this is not the case—since FIDO2 uses public key signatures with a secret key stored on the authenticator, a keylogger would not lead to the long-term account compromise that it wou
57.
by bkettle 3y ago
Agreed. One benefit of the SFI-based approach over typical approaches that leverage hardware like MPUs or this firewall is that we can have arbitrarily many privilege domains. For the security key we only have three (Trusted, USB, and FIDO2
58.
by bkettle 3y ago
Hi all, I recently finished up my Master’s thesis and thought the topic might be of interest to some HN readers. Happy to answer any questions!
59.
Building a safer FIDO2 key with privilege separation and WebAssembly(benkettle.xyz)
94 points by bkettle 3y ago|16 comments
60.
by bkettle 3y ago
As does the paper [1] with details in section 4.1. [1]: https://www.usenix.org/system/files/nsdi20-paper-agache.pdf

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