HNHacker News
TopNewBestAskShowJobs

rjmunro

2,774 karma · joined June 19, 2013

Senior Full-Stack Developer | Broadcast Automation & A/V Integration | TypeScript & Node.js
submissionscomments
rjmunro··on Sustainable energy without the hot air (2008)
https://withouthotair.org/ is the community updated version.
rjmunro··on What California is learning from solar panels built over irrigation canals
"My state"?
rjmunro··on I'm becoming AI-blind
Wouldn't "the original prompt" be pages and pages of back and forth conversations? That's how I've use AI agents to make documentation.
rjmunro··on World Train Map – 1247 train routes around the world
https://www.openrailwaymap.org/ is much more comprehensive. It's open street map data, but filtered for railway infrastructure.
rjmunro··on Twenty Years of RISC OS Open
Open and save dialogs are insane. Let's make a whole other finder that's completely different to the main one we use to navigate files.

The RISC OS approach is like a million times better. The only thing I would add is a context menu to create a new file of whatever kind at this location, like The "New" menu in windows.

rjmunro··on Should you wash your solar panels?
> solar does not need artificial subsidies, and can pay for itself

That's true now, but wasn't true when those panels were installed. There were subsidies available to get the market kick-started.

They consist of an extra payment for every kwh you generate on top of the payment for delivering the power to the grid. The amount varied depending on when you signed up to the scheme, but at certain points it was as much as 50p/kwh (+ inflation, so more than that now).

rjmunro··on Should you wash your solar panels?
It may also be worth spraying them with water when they are too hot. As they get hotter the efficiency drops a little. It's only a few percent, and usually it happens at the time you need the efficiency the least because it's sunny, but if you can combine cleaning and cooling and get a few extra w out if it, why not.
rjmunro··on Private healthcare makes industries less innovative. It's time for change
So do insurance based ones. And if you aren't 100% insured, that limit depends on how rich you and your parents are, and the balancing is often between health and other things.
rjmunro··on Private healthcare makes industries less innovative. It's time for change
The NHS is known for being pretty efficient when compared to other healthcare systems, especially the US. The problem is that there is no money and healthcare is getting more expensive.

There are incentives for high performance and efficiency. GPs are private partnerships contracted to treat patients. They can keep profits.

There's been attempts to do more private outsourcing (with the NHS still paying), but they tend to work out less efficient when you consider the whole system, because, for example they might only treat the easy cases and leave the hard ones to the normal hospitals.

rjmunro··on Germany set to restrict its Freedom of Information Act
Is there any material difference between a non-profit asking and people who work for the non-profit asking? Is the maker of the request made public or something?

It sounds like the organizations thing might just be to stop foreign nationals using that as a workaround.

rjmunro··on Ask HN: Who wants to be hired? (July 2026)

  Location: Oxford area, UK
  Remote: Yes (happy with hybrid — 2–3 office visits/month to London, Reading, Bristol, Birmingham, or similar)
  Willing to relocate: No
  Technologies: TypeScript, JavaScript, Node.js, React, Python, PHP, PostgreSQL, MySQL, MongoDB, Docker, GitHub Actions, GitLab CI, broadcast automation (Sofie/Bitfocus Companion)
  Résumé/CV: <https://arjam.net/cv.pdf> (see also <https://github.com/rjmunro>)
  Email: rjmunro@arjam.net
About: Senior full-stack engineer, 25+ years. Recently shipped major Sofie TV studio automation features for the BBC and SVT (<https://github.com/Sofie-Automation/Sofie-TV-automation>); my contract is wrapping up and I'm looking for what's next.

My recent work is TypeScript/React/Node on systems that have to work live-to-air—timers, playout orchestration, real-time state—not just CRUD behind a login. Example: re-architected Sofie timers to move clock calculations server-side, cutting client timer ticks from 60/s to 1/s.

I also build the tooling around the code: shared ESLint/Prettier presets across the Sofie ecosystem, jamies-git-tools <https://github.com/rjmunro/jamies-git-tools>. I have given company-wide Git talks and have wired up CI on GitHub Actions, GitLab CI, CircleCI, Jenkins, and others.

30 years of volunteer live A/V (sound engineering, directing, vision-mixing, streaming, camera operating, video editing).

Interested in broadcast/live media, live events, full-stack TypeScript, and developer tooling.

rjmunro··on Android Developer Verification: Threat masquerading as protection
> Google has been nuking accounts since their inception

Google has been dealing with accounts opened for fraud, spam and other evil bots since their inception. They should be nuking those. What's needed is some way of reverifying an account that was closed incorrectly, maybe some kind of independent ombudsman service or something to get the account back.

rjmunro··on Hengefinder
I tried the web henge near me feature (https://hengefinder.rcdis.co/henge_near_me)

It doesn't work if the road is not straight for it's entire length. It takes the start point of a road and the end point and assumes the road is a straight line between. It should work on individual segments of roads, not whole connected ways. It should only include further segments if they are on the same angle to some threshold. It should include segments from other roads if they are connected and aligned (maybe the road changes name at a crossroads).

It could even include disconnected segments if they align and are nearby but there is a discontinuity in between - sometimes a road junction is drawn in detail in Open Street Map - Often if you are stood at one end of the road you can see through and past the junction.

rjmunro··on 45°C cooling design cuts data center water use to near zero
I agree it's absurd and I'm in favour of some kind of wealth tax, but I don't get the connection here. This feels like a failure of infrastructure planning laws and things like noise regulations.
rjmunro··on Polymarket has flooded social media with deceptive videos by paid creators
It's been going for centuries in the UK. There have been murders:

https://www.independent.co.uk/news/uk/crime/father-jailed-fo...

https://www.independent.co.uk/news/uk/gambler-murdered-woman...

It's a bit hard to find good stats, but it's at least 1 or 2 a year, it could be more like 10 - plenty of domestic violence is caused by money problems, and those problems can often be gambling related.

There's a lot of suicides - between 250 and 650 people each year according to gamblingwithlives.org https://www.gamblingwithlives.org/wp-content/uploads/2022/01...

rjmunro··on I was wrong about the Midjourney ultra-sound scanner
I'm not sure the da Vinci Surgical System is a good example: https://pmc.ncbi.nlm.nih.gov/articles/PMC4941968/
rjmunro··on A backdoor in a LinkedIn job offer
I'd be 100% happy to block those carriers from calling me. Their users should just get a message that calling my number is not supported and they should try calling me from another device.
rjmunro··on Your ePub Is fine
They 100% did not let the power users and DIY scene exist. It only existed by exploiting OS security vulnerabilities. Every new iOS release required finding a new way to crack it. That's why a lot of people chose Android.
rjmunro··on Pokémon Go Scans Trained the Navigation Tech for Military Drones
Surely military drones will use OpenStreetMap data? Even the Russians and Iranians can use it for whatever purpose they like.
rjmunro··on Job: Head of Stonehenge
Last entry is at 3pm in winter because it takes a while to queue then catch the shuttle bus etc. and it gets dark, so closes at 5pm.

But if there were actual Police, not just English Heritage security, it sounds like something strange was happening that day, like a VIP visit or something.

It gets so busy that it's recommended to book a timeslot in advance on the website, even if you are a member and don't have to pay.

rjmunro··on Hacking your PC using your speaker without ever touching it
While the article only talks about using this as a USB HID keyboard to send attacks, surely if you spent more time creating an evil firmware from scratch you could do much more than this? You could bridge any information from USB -> Bluetooth.
rjmunro··on Can the stockmarket swallow Anthropic, SpaceX and OpenAI?
Could you use a prediction market (or Spread Betting in the UK) to hedge against your ETF loosing money during the period? If the ETF lost value, the hedge would gain it back and vice versa. You wouldn't need to sell the ETF and you'd only be liable for tax on gains from the prediction.
rjmunro··on New York, California pension leaders oppose 'extreme' SpaceX control structure
According to Gemini, index funds in total own about 20% of the value on the Nasdaq 100 index. So if you list a new company in Nasdaq, typically they have to buy 20% of it. But only about 5% of SpaceX will floated, which means there won't be enough shares to go round.

They are doing a bunch of changes to rules to try and make this not completely break, but even if it doesn't, it feels like index funds are going to have to buy a lot of the SpaceX float, which is going to make it look like a successful IPO even if hardly any real investors buy it.

rjmunro··on New York, California pension leaders oppose 'extreme' SpaceX control structure
I'd like to be able to invest in an "index minus certain companies which I choose" fund so that people can exclude companies that they don't like for whatever reason.
rjmunro··on Uber wants to turn its drivers into a sensor grid for AV companies
Some people would tell me that they do, but only for training their internal self-driving AI.

I'm not sure about the privacy implications. You say "all its cars" but you actually mean "all its customers cars". The relationship between Uber and the cars/drivers is fairly different.

rjmunro··on Uber wants to turn its drivers into a sensor grid for self-driving companies
Sometimes AV is supposed to mean Anti Virus or Alternative Vote and that's really confusing because it really means Audio Visual. Anything else, no.

I saw the title and thought it can't be AV, they must mean AI and made a typo.

rjmunro··on A Roblox cheat and one AI tool brought down Vercel's platform
It might be the opposite - they logged into their work gmail account on their home machine to check their email.
rjmunro··on Edit store price tags using Flipper Zero
In which country?
rjmunro··on FSF trying to contact Google about spammer sending 10k+ mails from Gmail account
I think thats a really wrong definition of spam. Spam is untargeted junk from people you don't know, who are probably hiding there real identity using fake email headers etc. If it's a legit company with legit unsubscribe options, it's not spam.

It worries me a lot that people clicking "mark as spam" on messages from legit companies because they subscribed to the newsletter will mean that my messages with important information (order confirmations, e-tickets etc.) will get blocked.

rjmunro··on FSF trying to contact Google about spammer sending 10k+ mails from Gmail account
I don't think your definition of spam matches the one that I understand it to mean. Spam is random email from someone you have not had contact with before firing messages to every address they can find anywhere on the web, the dark web, etc. Or if you ask not to be added to a mailing list and are added anyway. They often use fraudulent tricks to try to get the email through filters, such as fake from addresses.

Spam is not email from legitimate companies with valid contact details that have an opt out that you forgot to click when you signed up with them. That's legitimate marketing emails. You might argue they also shouldn't exist, but they are a different category.

I get plenty of the second from mailchimp (it's what they do), almost none of the first. Marking the second kind as spam, rather than clicking the unsubscribe link is dangerous because it teaches your anti-spam filter to reject messages from legitimate companies. You might find that if they need to contact you for a genuine reason e.g. a reciept for a future transaction, the message is blocked.

Page 1 of 30Next →