Jack Dorsey sends. On Sunday, the co -founder of Twitter shared a link at X (formerly Twitter) to New program called Sun Day, which he claims helps users track their consumption of vitamin D. it is the He debuted a second new program in a week, and it all thanks AI’s help.
Sun Day calculates how long users can safely soak the sun before burning their skin with the UV rate of the user’s location, cloud cover, sunrise and sunset, skin tone, and even what clothes they wear. This feature definitely helps people like Dorsey, who accidentally mentions later in the thread that He does not use solar protection.
The app also tracks the user’s time to allegedly estimate how much vitamin D they absorb. This is based on a “UV exhibition using a multiple model based on scientific research”, according to the GITHUB page of the app. Exactly how correct this model remains unclear.
Future updates will improve calculations with factors such as height, weight and the actual vitamin D blood levels of the user. Currently, anyone curious can try a sunny day in iOS by Testflight or embrace its code on GitHub.
Like the other recent “weekend project” of Dorsey, Bitchat, Sun Day was built by Goose, the AI coding assistant developed by Block, Dorsey’s payments. And both projects are part of a wider trend that Dorsey seems now, “Vibe coding.”
VIBE coding is a new approach where developers depend a lot on AI -helpers to generate and debug code through natural language promises. This allows developers to focus more on the overall “vibration” of what they try to accomplish by app instead of the technical specifications of its code.
The previous Sunday, Dorsey announced the beta launch of BitchatMessage app built for Peer-to-Peer conversations through Bluetooth Mask networks instead of the Internet, which does not need phone numbers, emails or any constant IDs to work.
“[B]ItChat addresses the need for resistant, private communication that does not depend on centralized infrastructure, “Dorsey explained in White paper Published to his GitHub page. “Using Bluetooth low energy network network, BitChat enables a direct company to Peer-to-Peer in physical proximity, with an automatic message relay extending the efficient range beyond direct Bluetooth links.”
But Bitchat has already hit skepticism.
In a recent Blog postAlex Radocea, Director General of Supernetworks, noted serious damage: the app currently has no real way to check who is talking about.
“In cryptography, details are important,” Radocea wrote. “A protocol that has the right vibrations may have fundamental flaws of a substance that commit to everything it claims to protect.”
Since the blog post, the app’s GitHub page has added Warning stating that the app “has not received an external security review and may contain vulnerabilities and does not necessarily meet their stated security goals.”
It is just a reminder that vibe coding could be a way for developers to strengthen their way to a functional product, but users may want to think twice before installing these programs and take on the potential security risks.
