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thearrow commented on High air pollution could diminish exercise benefits by half – study   scienceclock.com/exercise... · Posted by u/ashishgupta2209
softwaredoug · 4 months ago
Before people freak out about their morning run, I’m very hard pressed to find 25 PM2.5 on this map of the US. (Note these numbers are AQI, you have to zoom into the bad AQI numbers and look at their PM2.5). Albeit it’s a Saturday morning, not rush hour.

China and India look rough though.

https://www.iqair.com/us/air-quality-map

thearrow · 4 months ago
Please note that air quality in an area varies dramatically over time. You are looking at a current snapshot with maps like that. The map linked below has his more historical data and I can see several _weeks_ this past year in my area (which currently has very good air quality) where the PM 2.5 weekly average exceeded 25ug/m^3.

https://map.purpleair.com/air-quality-raw-pm25

Localized phenomena like a neighbor starting a fire, up to the activity of nearby factories and power plants, up to national and global phenomena like wildfires and weather patterns, all have dramatic effects. Looking at an air quality map once and determining that you don’t have to think about air quality because you’re in the US is a mistake.

Exercise outdoors is a wonderful thing, obviously, but there are some days, even in the US, where you might think twice or even consider shifting your exercise to a different (less-polluted) time of the day.

thearrow commented on The day my smart vacuum turned against me   codetiger.github.io/blog/... · Posted by u/codetiger
blutack · 5 months ago
Luckily it's supported by Valetudo so it can go back to work.

https://valetudo.cloud/pages/general/supported-robots.html#i...

thearrow · 5 months ago
Happy Valetudo user for years. It has great integration with Home Assistant, too. Highly recommend.
thearrow commented on I used AI-powered calorie counting apps, and they were even worse than expected   lifehacker.com/health/ai-... · Posted by u/gnabgib
cowanon2222 · 9 months ago
I've had pretty good results using the AI features in Macrofactor. It's certainly not perfect, but it does a pretty good job with mixed text and photos and allows you to easily fine-tune the results.

Macrofactor is also the only app I've seen that actually estimates your underlying metabolic rate and adjusts accordingly. It predates the recent AI surge, and seems to have a team that's studied nutrition science behind it.

thearrow · 9 months ago
Same. I was very skeptical when Macrofactor introduced this feature, but have since been incredibly impressed. The ability to give it text alongside a photo and then adjust the results (broken out by ingredients) are critical. I’ve also been taking pictures of food sitting on scales and it will take the measurement into account.

Seems like the Macrofactor team took their time developing this feature, as it felt like they were one of the last to roll it out, but the extra polish definitely shows and was worth the wait.

thearrow commented on AI Ambivalence   nolanlawson.com/2025/04/0... · Posted by u/todsacerdoti
6510 · a year ago
If it makes you feel better, I'm still typing out things by hand that just work using notepad and ftp.
thearrow · a year ago
Absolutely hilarious! I bet you forego using calculators and do all of your arithmetic by hand, too. Such a clever analogy!
thearrow commented on AI Ambivalence   nolanlawson.com/2025/04/0... · Posted by u/todsacerdoti
thearrow · a year ago
I love this essay, and it very closely mirrors my own feelings about the topic. Thanks for writing/sharing it.

I’m perpetually bamboozled by my fellow software engineering colleagues who insist on proudly shouting from the rooftops “Look at me, ma! I’m vibe coding!” as if it’s some badge of honor to see who can churn out the greatest quantities of shitcode the fastest and completely surrender any last scraps of their cognitive abilities to the best LLM provider of the current moment.

thearrow commented on Jellyfin: The Free Software Media System   jellyfin.org/... · Posted by u/doener
lukevp · a year ago
Jellyfin is pretty good, and I've been using it in place of Plex for the last few years. However, I feel like there are some underlying limitations that I just can't get past:

1. the UI jank. The thumbnail tiles are slow to load, even on a local network. Searches and filters flicker as you type and take a while to return. Scrolling fast in the web UI gets choppy/laggy.

2. The native app (at least in the case of Apple TV) is either nonexistent or terrible. I've been using Swiftfin since it was one of the first alpha versions, and it constantly lost pairing with my Jellyfin instance. When it did work, which was very cryptic and usually required re-enrolling the client every time, it would randomly fail to load things, and the UI was very choppy as well. I haven't used the native apps on other platforms, but I imagine they are equally or more janky, because the Apple TV is comparatively very beefy hardware-wise vs. most other platforms.

3. The polling for new media is slow. I upped it to 10 minutes (the quickest possible setting) but I shudder to think what a full scan of a media library every 10 minutes is doing to my disks. Why doesn't it use file watchers and webhooks for new content notification?

4. The homepage has very little actionable info and doesn't work for browsing. It's not like Netflix or any of the other services where you can boot it up and see a bunch of different categories, as well as your "list". It has playlists, but you have to drill down to see them. You can go to "Movies -> Suggestions" and it has a little bit, but nothing like Netflix does. No real recommendation engine.

5. You have to maintain your own trailers or use an app like Infuse that can download its own trailers.

6. You have to separately configure tiles to be rendered if you want a nice seeking experience where it shows a live preview as you scrub through the timeline.

7. Movies and TV Shows are separated even though pretty much every other platform doesn't separate them, which requires you to click into one of 2 options before you can do almost anything.

That said, it's still far better and less janky than Plex was before I switched, and Infuse actually plays back HDR / Dolby Vision content correctly.

Does anyone else have qualms with Jellyfin? And how does Plex compare to any of these gripes?

thearrow · a year ago
Echoing many of the other replies here - my experience has been very different (much better).

The web UI is fine and snappy and using Infuse on Apple TV is simply delightful.

The server uses file watchers to update the media library very quickly and is light on resources.

I don't need a recommendation engine because... it's my media library, presumably I added things to it that I want to watch.

And most importantly, it's open source and not likely to get enshittified in the near future like Plex.

thearrow commented on Stdx – The Missing Batteries of Rust   github.com/brson/stdx... · Posted by u/jcbhmr
dpc_01234 · 2 years ago
This is stale, last commit 5 years ago. Lost of listed crates are still go-to ones, but e.g. for logging nowadays I'd reach for `tracing`.
thearrow · 2 years ago
Looks like a more recent alternative might be: https://blessed.rs
thearrow commented on Sega Saturn Architecture – A practical analysis (2021)   copetti.org/writings/cons... · Posted by u/StefanBatory
thearrow · 2 years ago
Nice analysis! I still have an original Sega Saturn I’ve owned since 1996 that I fire up occasionally for a nostalgia bomb. The thing still runs perfectly, same as the day I unboxed it! They may have ended up with quite a complex hardware architecture, but you’ve gotta love the reliability of the older consoles. The same cannot be said of the more modern consoles I’ve had over the years - burning themselves up or failing in other ways.
thearrow commented on Show HN: Causal 2.0 – Modern Financial Planning for Startups   causal.app... · Posted by u/refrigerator
refrigerator · 2 years ago
Haha, I think the evolution was something like this:

1. Slack introduces "sidebar" concept

2. Notion takes it a step further

3. Everyone starts doing sidebars, including Linear

We took inspiration from Linear's 'search button in sidebar' and 'profile pic in sidebar', which I think were maybe their unique contributions to the tradition :)

thearrow · 2 years ago
Do you use a react component library? If so, which one?
thearrow commented on Zed, a collaborative code editor, is now open source   zed.dev/blog/zed-is-now-o... · Posted by u/FeroTheFox
philsnow · 2 years ago
I opened a random python project on my machine in Zed and it automatically loaded up an LSP for python. It looks like it's using the same one as my emacs uses (pyright), but it presents completion choices in a not particularly useful order. Typing `os.p` gives me for instance as completion choices:

  pwritev
  pwrite
  putenv
  popen
  pipe
  path
  P_ALL
  P_PID
  pread
  pardir
  P_PGID
  P_WAIT
... but then I type 'a' and then backspace and it gives some of the same choices, but in a different order

  P_ALL
  path
  pread
  pardir
  P_WAIT
  [etc]
here's a gif of it, I'm just typing and backspacing through "os.path" and watching the completions be in an unguessable order: https://snap.philsnow.io/2024-01-24T13-57-09.q7pyi8re104uqhn...

Is pyright just giving Zed all the possibilities and it's up to Zed to rank them? I don't know the details of editor/LSP integration. lsp-whatever in emacs ranks these choices in a reasonable order.

thearrow · 2 years ago
I’m also curious about the answer to this! I noticed similar behavior when opening a Typescript project. Enjoy the low latency, but I’d also appreciate accurate/helpful autocomplete suggestions.

u/thearrow

KarmaCake day62April 2, 2013
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