Ask HN: What are you working on? (May 2026)
201–210 of 1001 posts
Re: Ask HN: What are you working on? (May 2026)
#202Next up is actually implementing game play!
There is a little video demo here (but bear in mind that everything is temp graphics) https://hakon.gylterud.net/diary/2026-05.html#2026-05-02
Re: Ask HN: What are you working on? (May 2026)
#203Re: Ask HN: What are you working on? (May 2026)
#204Re: Ask HN: What are you working on? (May 2026)
#205Re: Ask HN: What are you working on? (May 2026)
#206Re: Ask HN: What are you working on? (May 2026)
#207Given a distance, an allowable time to reach that distance, a payload to send, and an expected exhaust velocity, how would you calculate the time required to convert energy into antimatter fuel and how much antimatter needed to arrive at the destination (starting from the Moon)?
There are a few side calculations, such as the size of the radiator, estimated footprint of the fusion reactor itself, and how much metamaterial is needed. This is to help figure out timelines for a sci-fi novel, so ballpark answers are completely fine.
The calculations yield what appear to be values around the correct order of magnitude. Would be delighted to have insights, comments, and corrections.
Re: Ask HN: What are you working on? (May 2026)
#208So: ac-ng didn't reduce the impact of the DDoS, but it does lead to impact when there is no DDoS. Worst of both worlds.
So I'm working on an apt-cacher that goes to lengths to keep working as much as possible when the upstream is down. It will check the repo metadata and keeps a list of your "hot packages", and will download those before flipping the new metadata to be live, effectively a snapshot. It won't allow you to download a package you've never downloaded before in the case of a DDoS, but packages that you do download regularly (machine re-installs, apt updates), it will ensure are available in the repo.
I'm calling it apt-cacher-ultra. It is pretty early days, it'll probably be another week before it's ready for a beta. I'm running it in my dev cluster right now, successfully.
Re: Ask HN: What are you working on? (May 2026)
#209Re: Ask HN: What are you working on? (May 2026)
#210I do calisthenics 3×/week plus Ironman 70.3 prep, which means my training lives across Garmin, Polar, Withings + FIT files and front-lever sessions that no mainstream app models. So I built one that does both (and have been using for the past 4 years+): logs custom strength moves (front lever, FLAC, ¾ pull-ups), aggregates the connected devices (Polar, Garmin, Suunto, Withings, Apple Health) into one weekly view. Cur…