Show HN: I'm a dermatologist and I vibe coded a skin cancer learning app

Posted by sungam 9/7/2025

Show HN: I'm a dermatologist and I vibe coded a skin cancer learning app(molecheck.info)

Coded using Gemini Pro 2.5 (free version) in about 2-3 hours.

Single file including all html/js/css, Vanilla JS, no backend, scores persisted with localStorage.

Deployed using ubuntu/apache2/python/flask on a £5 Digital Ocean server (but could have been hosted on a static hosting provider as it's just a single page with no backend).

Images / metadata stored in an AWS S3 bucket.

429 points | 259 commentspage 7

bobmcnamara 9/7/2025|

I'm around 75%

Idea: distribution of player scores

I'm going to get some models checked out.

sungam 9/7/2025|

Great idea! Will aim to add to the next version

geoffbp 9/7/2025||

“How to recognise skin cancer” link from the menu goes to 404

sungam 9/7/2025|

Sorry - wasn't expecting anyone to use the app or any traction on HN! Will update

nextworddev 9/7/2025||

Can people sue you for malpractice if something goes wrong?

sungam 9/7/2025|

No - the app is just asking users to give their own opinion on publicly available images so there is no duty of care

childintime 9/7/2025||

would a tool that can take a truly tiny sample out of the lesion be a valuable complement? so we can send it in (with the tool) and get a lab test done?

sungam 9/7/2025|

Unfortunately not that useful - we could do that now by taking a very small (e.g. 2mm) punch biopsy, and if it shows melanoma obviously that is helpful and the rest of the lesion needs to be removed. The issue is that a negative result doesn't exclude melanoma elsewhere in the lesion.

I have been working with a startup to try and develop a non-invasive molecular test for melanoma so hopefully this will be possible in the future.

NoiseBert69 9/7/2025||

What happens if I make a picture of my cat with it?

sungam 9/7/2025|

Not sure how you would do this but feel free to try!

smnplk 9/8/2025||

I was vibe coding server configurations all day.

MistaGobo 9/7/2025||

WARNING: Not to be viewed while eating!

sungam 9/7/2025|

Perhaps should add a NSFE tag...

hopelite 9/7/2025||

Today I learned most things are cancer

mustaphah 9/7/2025||

cool, very nice. The real test starts when the first dependency gets deprecated.

sungam 9/7/2025|

No dependencies - single page app with no backend including all html/css/js

elzbardico 9/8/2025|

This looks a lot like the early years of the PC, and I love it. Well, you still need to pay for infrastructure, so it is not exactly the same, but I believe that we will see a lot of creative stuff enabled by the fact that LLMs remove a lot of the barriers to entry before the creative layman and coding.

I don't fucking care if we all lose our jobs, as long as we also fuck the VCs by making them obsolete.

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