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I had no idea what a DX7 cartridge was, but out of curiosity I clicked the "Click here to generate" link. It immediately downloaded a file.

I'm sure you have no malicious intent here, but my immediate reaction was that it's a virus or something bad. I immediately deleted the file. The experience felt like one of those scammy popups that initiates a download.

You should really put a label or something to indicate to the user that clicking the link is going to download something.


I think people are talking about "Click" differently.

- There is a click on the link on this page that leads to the webpage. Nothing is downloaded at this time.

- There is a click on the target webpage "Click to generate cartridge". Those who know what DX7 is, who are presumably a target audience, would understand this will generate a file.

For those who do not know what DX7 is or what's happening, well... why are you clicking in the first place - if you have no idea what'll happen, a file is a legitimate possibility;) - but I think mostly it'll differ whether they have "Always ask me where to download" (in which case it'll prompt for ___location), or "Always download in default folder", in which case yes indeed it'll download a file.

But at that point you've already clicked two times voluntarily on a strange page whose provenance or purpose you don't know, AND you have enabled "Don't ask me for downloads", AND you didn't bother to scroll down two millimeters for explanation but just clicked on first thing that said click me, soooooo... at some point it's no longer author's responsibility and the cries lose their credibility ¯\_(ツ)_/¯


"But at that point you've already clicked two times voluntarily on a strange page whose provenance or purpose you don't know"

How many times have you clicked on an HN submission that you already knew 100% about? This site is for people to showcase their projects, of course curious visitors are expected to poke around.

This app looked like a single page - it's not at all obvious it's even possible to scroll down. It resizes to the browser window so the FAQ is always hidden unless you scroll. This is quite obviously based off "this face does not exist", so its perfectly reasonable to expect it to play something in the browser.


There have been a bunch of these sites that were images, before. It's not unreasonable to expect that it would generate another image and display it.


That it automatically downloaded a file is down to your browser, not the site. If you have "ask before downloading" (or similar) set, it'll prompt to download.


Well that is a common social vulnerability of the Hacker News crowd: if you give a link to some binary file for any retro system people here will install an emulator it runs on and execute it, ever if you say that it's actually a viral payload. For example: http://swiftlytilting.com/downloads/PCM.demo.wgraphics.zip (that is viral)


It is difficult to overstate how strongly I want to download and poke through that file, even knowing it's a bad idea.


Just unzip it and then cat the contents into aplay!


dQw4w9WgXcQ alert!! :)

That is cool. It's even a valid NES cartridge according to `file`. Nice. I needed `aplay -f 16` FWIW.

I shall respond with this: https://www.youtube.com/watch?v=iJgNpm8cTE8


Technically you want to increase the sample rate (to around 14.5kHz) rather than change the depth to 16, but yeah it basically works either way.


Oh, thanks. And that's hilarious that both work.


I tried to run it in my homegrown emulator - sadly it crashed because I haven't implemented mapper 2 (and bank swapping). If it's what I think it is though, you're right, very viral. ;)


This appears specific to your setup and testing process. I tried this with several browsers, and this did not occur for me.

Browsers: Firefox, Chrome, Edge

Perhaps you're referring to the link on the website which says "Click here to generate Cartridge!"?

Which follows the somewhat expected path for the picture context.


I did not expect to be downloading a file, either. Like many people, I have no idea what a "DX7 cartridge" is. From context, I assumed this was a picture generator like "This face does not exist".


I had the same thing happen on Safari on iOS.


I know what one is. I'm a fan of fm synthesis and dx-model synths and variants.

But if I had known it automatically downloaded a patch I wouldn't click. It did this without me clicking anything.


What browser are you using? It requires a click for me on Firefox. From a quick glance at the source I don't see anything that would automatically initiate a download.


Chrome 81.0, Android.


Very cool! What do you expect the range to be with that setup?


Maybe a hundred miles if I'm lucky. Lithium iron phosphate isn't as good as, say, modern Tesla batteries in terms of energy density, but they're a good choice for conversions because they're much less likely to catch on fire if something goes wrong.

I could get better range with more batteries, but I also didn't want to increase the total weight of the vehicle by more than a few hundred pounds, just to stay within design tolerances.

(The RX-8 is about 3,000 pounds normally, which is pretty light for that sort of car. A Miata would probably be an even better choice, as it's around 2,000 pounds. It's hard to find newer Miatas for a reasonable price, though. RX-8's can be had pretty cheap because the rotary engine is easy to destroy if you don't maintain it properly and even in the best case usually needs to be rebuilt every 100,000 miles or so to replace worn apex seals. So, there are a lot of used RX-8's on the market that need engine work.)


At the very least, this might spawn some discussion around being able to remotely enable/disable SDKs, from a server that you control. Last week it was Google Maps, today Facebook SDK...


This seems like it would only work if you're able to stay bumper to bumper with the charging car for 30+ minutes. You'd have to be traveling a very long distance along the same route (and, the charging car's destination MUST be before it runs out of power after transferring its power). What are the odds of that happening, on a reliable basis? At that scenario, it seems more sensible to install overhead wires (or underground) along freeways for long distance travel.


They probably do contract app development, with 1000s of clients


Hi HN,

I’m the solo developer behind mungbean. It’s a different take on the ambient ___location app, such as yikyak of yore.

This is a real time content sharing/chat app, that uses your ___location and activity levels to group and split communities of users. Each “room” represents a geographic fence. As more people join, the room splits and the geofence shrinks - hopefully equalizing the overcrowding that happens with most regular chat rooms, while giving those users a more local experience. Users can chat, submit pics/blurbs/links, or just lurk and upvote on the front page.

The goal is to give a voice back to the individual, rather than being drowned out too many messages (like on youtube chat) or revolving around influencers. This is accomplished by letting the app form a community, instead of the traditional pick-and-choose method.

An Android version is also available in the Play Store (just search “mungbean”). Pop in for a quick hangout, and let me know what you think!


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