HNHacker News
TopNewBestAskShowJobs

SamDc73

377 karma · joined October 15, 2023

Building in EdTech (talimio.com)

Website: https://samdc73.com Email: H44N4@samdc73.com (remove all the fours)

meet.hn/city/37.9728125,-122.0723986/94523

Socials: - x.com/samdc73

---

submissionscomments
SamDc73··on Desire to Move Permanently to U.S. at New Low
compared to the US, SA salaries are quite low
SamDc73··on Desire to Move Permanently to U.S. at New Low
Gallup's question is: "Ideally, if you had the opportunity, would you like to move permanently to another country?"
SamDc73··on Desire to Move Permanently to U.S. at New Low
China isn't even mentioned as a destination at all. more people migrated to India than did to China ....
SamDc73··on ADHD as a circadian rhythm disorder: evidence and implications for chronotherapy (2025)
Three things that helped me with my circadian phase (to certin extend)

1) Melatonine 300mcg 5-6 hours befor desired sleep time 2) 10k lux light for 30m when waking up 3) Nobeltin (nootropic) it enhances clock amplitude, so I do get less sleepy during teh day and more sleepy at night ..

things taht kind of helped but find hard to keep: Keto (I feel less sleepy on Keto, and easier to fall a sleep but it's been a while since ive been on keto)

SamDc73··on Anthropic reported diary entry to police, woman faces felony charge
if they keep a tap on you, how long before that data gets used for ads or sold to an ad agency?
SamDc73··on Shopify acquires Tailwind
I alwasy thought they would be aquired by Vercel or maybe Anthropic but didn't see this one coming
SamDc73··on Shutting down our public encrypted DNS
nextdns.io might be an option

https://adguard-dns.io/kb/general/dns-providers/ have a list of options that some of them have ad blocker

SamDc73··on Ask HN: How do you keep up with HN these days?
I use glance[1] wich is a dahsboard app, which i have it as my new tab overwrtie in the browser. and have HN widget in there so while i'm going about my day if I see title that got my attention I open it (and read it at the end of the day most of the time)

[1] https://github.com/glanceapp/glance

SamDc73··on Ask HN: I've quit six systems for tracking my illness. What works?
What i did (been doing it for like 5 months so far) is keep track of my day (just using Logseq just type in things like: "5:00 -> 5:30 checking Email" and such .. for the whole day, but i found that when i'm not home there will be some gaps, and that I usully fill back form memroy at the end of the day (which leads to maybe some gaps?)

usully what I do I track (in the md file) day by day: my mood, what I eat, do, play, nootropics, waking up time and all that) and the goal was to see any trends (was planning to do it for like 1-2 weeks but then turned out to in a way keep me gorunded and more aware?) (the last 3 months logs md file was 5k long)

I tried to have a Hermes agent that I talk to throught telegram (had some cron jobs to check in multiple times a day) and some script to pull things like browser data and other data points to see time spent on certain things, and it would generate an md report at the end of the day for that day, but idk, it misses a lot of things (like it hard to tell how many hours I spent on X or Y and such reltative to other day and/or the break down of tasks and such).

for the md file I do upload to Claude or such and then try to find correlation (I dont tend to read it back my self), I did find out that lactose give me bit of a brain fog (that was never too strong that I could tell it's lactose directly) and that when on caffine I tend to think I achevie more than what I actully did (among many other thigns here and there), I also have smart ring data taht I also upload to claude too.

I do use habits app (been using it for like ~5 years but with some gaps.

My main thing that would make me use somethig external is if it pulls data form various sources directly into the logs. like browsing history, sleep data, location data, phone usage hisory, spotify, tempreture, air quality, water drank (Idk maybe usign some smart water bottle or something) and such (althougth it might be iatrogenic)

SamDc73··on Our position on open-weights models
But he had business agreements with companies that are doing that (Palantir).
SamDc73··on Why Switzerland has 25 gbit internet and America doesn't
Honestly this reads like a badly-written propaganda that relies on no messured statistic.

From okla's Speedtest Global Index:

Fixed broadband (median download): US: #9 306.86 Mbps Switzerland: #10 300.70 Mbps

Mobile: US: #11 205.71 Mbps Switzerland: #42 118.93 Mbps

the "25 Gbit" is top tier prodcut that while avablie in the US (sure not the whole country) it's not sometinhg the avg in both coutnries actully buy/use...

> why Switzerland has such fast internet at a reasonable price

also on prices the per 2023 (couldn't find any newer resoruces) [2] 100 Mbps in the US seems a bit cheaper in the US than swizerland (but the diffrnece is honestly neligable to begin with)

> Every home gets a dedicated 4-strand fiber line. Point-to-Point. Not shared. Not split 32 ways.

form a quick serach, this seems to simply be not true, FTTP coverage is 50% in swizerland (comapred to 69% in europe) and 27% in rural areas (compared to 58% in rural europe) per 2024 [3]

> The United States prides itself on free markets

boradcam is one of the most regualted/restricted markets in teh U.S (for better or worse) so it really isn't really free market ...

Local governments grant the cable/telecom franchise and levy franchise fees up to 5% of gross revenue (Cable Act 1984, 47 U.S.C. §542). Entrants also need government-controlled pole and right-of-way access; pole/permit fights are what stalled Google Fiber. And ~16–17 states legally restrict or ban municipal broadband.

Section 301 China tariffs (10–25%) since 2018 (Trump) hit optical fiber, routers, and network electronics. Biden's 2021 Infrastructure Act (IIJA) also restriected using some certin chinesse technology when buidling internet infrastructure.

[1] https://www.speedtest.net/global-index

[2] https://www.picodi.com/us/bargain-hunting/internet-prices-20...

[3] https://op.europa.eu/en/publication-detail/-/publication/57c...

SamDc73··on AI OSS tool repo goes archived over night after raising $7.3M Seed
I'm glad I used litellm in my last project

https://github.com/BerriAI/litellm/

SamDc73··on Statement on US government directive to suspend access to Fable 5 and Mythos 5
> OpenAI and Anthropic were founded by people who sincerely believed in the risk of out-of-control superintelligence

Why would they sell there services to Palantir and/or to the military then?

SamDc73··on Slightly reducing the sloppiness of AI generated front end
I think the original looks the best and by a large margin
SamDc73··on I Do Not Recommend Bitwarden
That is my bad; I was thinking of LastPass[1] where it took them months to fully disclose and explain a very serious breach of data.

1Password seem to have a good transparency track record (I edited the original comment)

[1] https://news.ycombinator.com/item?id=34097142

SamDc73··on I Do Not Recommend Bitwarden
Bitwarden have in my opinion is one of the BEST business models a user can ask for.

It's open-source, and I can self-host (100% free) and the free version is really, really good too, and then a premium version is $20/year which is very reasonably priced.

Also for cloud hosted password manager, you're always going to have attacks no matter what, but at least they are transparent about it .. (unlike say LastPass, Norton LifeLock, Keeper and possibly others). For self-hosting it might be better security, solely because no one cares to attack it, but it's not going to be more secure form engineering best practices POV (but again I might be wrong .. I'm not a security engineer of any kind)

SamDc73··on Period tracking app, Flo, found to be selling user data to Meta
Not sure why, but they did cooperate with the government on such matters

Facebook previously gave private Messenger chats to Nebraska police, these messages were used as key evidence to charge a mother and daughter over an alleged illegal abortion[1]

[1] https://www.theguardian.com/us-news/2022/aug/10/facebook-use...

SamDc73··on GoDaddy gave a domain to a stranger without any documentation
Relevant (for some reason though it shouldn’t be; GoDaddy’s track record is that bad.)

Jan 2017: [Godaddy has issued at least 8850 SSL certificates without validating anything](https://news.ycombinator.com/item?id=47911780)

Jan 2019: [GoDaddy injecting JavaScript into websites and how to stop it](https://news.ycombinator.com/item?id=18894792)

Aug 2022: [Tell HN: Godaddy canceled my domain, gave me 2h to respond, then charged €150](https://news.ycombinator.com/item?id=32470017)

Dec 2022: [GoDaddy buying domains when they expire to extort their own users](https://news.ycombinator.com/item?id=34153448)

Jul 2023: [Godaddy just stole my domain](https://news.ycombinator.com/item?id=36854166)

Jan 2024: [Tell HN: GoDaddy Stole My Domain](https://news.ycombinator.com/item?id=39209087)

SamDc73··on Norway Set to Become Latest Country to Ban Social Media for Under 16s
It's the war on drugs all over again ...
SamDc73··on DIY Soft Drinks
I switched to zero sugar about a year ago, but all the zero sugar sodas use aspartame (yeah yeah not proven to cause cancer, but still not a great sweetener)

for now (out of laziness), I just grab plain sparkling water and add Stur drops

Also didn’t expect to be pulling recipes off GitHub, but I’ll take that any day over those paywalled sites

Definitely want to give this a try!

SamDc73··on Maine is about to become the first state to ban major new data centers
I don't know if I get you're points because lobster farms are tied to certain external factors in a way things like data centers aren’t.

but either way, the argument feels very NIMBY: it’s not ‘no housing,’ it’s ‘just not here.’

so when someone say ‘let someone else host them,’ it really comes across as: I want the internet, just let other communities pay the environmental cost.

SamDc73··on Maine is about to become the first state to ban major new data centers
yeah, another way to put it: if you don't want factories, that's fine; just don't buy manufactured stuff .. the same with data centers, if you don't want data centers then don't go on the Internet because by doing so you're becoming part of the problem.
SamDc73··on Ask HN: What is your dev set up like?
in the last ~2 years:

VSCode/GH copilot -> windsurf -> Zed/Claude code -> Zed/codex -> Zed/opencode -> Antigravity/opencode

I'm only using antigravity cause they have good limits for now .. (but it we be matter of time before it will go away and then go back to Zed)

SamDc73··on OpenAI Acquires TBPN
They’re more active on Twitter/X,

idk what it is about them that every "tech bro" type guy around me follows them, but I never followed them myself, so I was surprised to know they only have 300k on Twitter.

SamDc73··on Ask HN: What are you working on (March 2026)
yeah we use an LLM for the grading .. (for the free form questions)

the flow is basically:

When practice questions are generated, the model generates the question + the reference answer together, but the user only sees the question. then on submit, a smaller model grades the learner answer against that reference answer + the grading criteria.

I benchmarked a bunch of judge models for this on a small multi-subject set, and `gpt-oss-20b` ended up being a very solid sweet spot for quality/speed/structured-output reliability. on one of the internal benchmarks it got ~98.3% accuracy over 60 grading cases, with ~1.6s p50 latency, so it feels fast enough to use live.

for math, it’s not just LLM grading though:

- `SymPy` for latex/math expressions, so if the learner writes an equivalent answer in a different form, it still gets marked correct; so `(x+2)(x+3)` and `x^2 + 5x + 6` can both pass. (but might remove that one since it might be easily replaced by an LLM? And it's a niche use that add some maintenance cost)

- tolerance-based checks for the JSXGraph board state stuff; so on the graph if you plotted x = 5.2 instead of 5.3 it will be within the margin of error to pass but will give you a message about it

I also tried embedding/similarity checking early on, but it was noticeably worse on tricky answers, so I didn’t use that as the main path.

SamDc73··on Ask HN: What Are You Working On? (March 2026)
It's -kind of- launched, still have couple of things to tight.

And will add a privacy policy by the end of the day, thank you for point that one out

SamDc73··on Ask HN: What Are You Working On? (March 2026)
yeah sure, my email is in the bio
SamDc73··on Ask HN: What Are You Working On? (March 2026)
https://talimio.com/ Generate fully personalized courses from a prompt. Fully interactive.

New features shipped last month:

- Adaptive practice: LLM generates and grades questions in real-time, then uses Item Response Theory (IRT) to estimate your ability and schedule the optimal next question. Replaces flashcards; especially for math and topics where each question needs to be fresh even when covering the same concept. - Interactive math graphs (JSXGraph) that are gradable - Single-image Docker deployment for easy self-hosting

Open source: https://github.com/SamDc73/Talimio

SamDc73··on Ask HN: What are you working on (March 2026)
https://talimio.com/ Generate fully personalized courses from a prompt. Fully interactive.

New features shipped last month:

- Adaptive practice: LLM generates and grades questions in real-time, then uses Item Response Theory (IRT) to estimate your ability and schedule the optimal next question. Replaces flashcards; especially for math and topics where each question needs to be fresh even when covering the same concept. - Interactive math graphs (JSXGraph) that are gradable - Single-image Docker deployment for easy self-hosting

Open source: https://github.com/SamDc73/Talimio

SamDc73··on Jensen Huang says Nvidia is pulling back from OpenAI and Anthropic
The Stargate money didn’t show up I guess, and now the whole gridlock is collapsing?
Page 1 of 5Next →