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Show HN: I replaced my premium workout app with vibecode

https://strengthquest.lovable.app/
2•maddmann•1h ago
I was going through my app subscriptions and realized I was paying $15 for a pretty good workout app, which seemed a bit high to me.

As a software engineer who is also well versed in claude code, I realized that I could likely vibecode a very similar app, or even build something more to my liking. I challenged my self to build something roughly equivalent this afternoon.

Workflow was: start with a detailed spec from Claude code describing many of the features common in workout apps. Then paste this into lovable to have it build out the initial mvp.

Once that was built, I used claude code extensively to modify the app until it was usable, including adding an import from the costly premium app.

While there are bugs, I think I might use this app. And it is insane that we are in a place where I can build this on my phone during an afternoon. In a few years, the economics of apps is going to be different, at least for folks willing to work a little bit.

In theory this project will save me over $190 a year.

Alternative solvent makes lead-free perovskite solar cells 10x more stable

https://pubs.acs.org/doi/10.1021/acsenergylett.5c02675
1•gsf_emergency_6•1m ago•0 comments

Room-Size Particle Accelerators Go Commercial

https://spectrum.ieee.org/plasma-wakefield-acceleration
1•geox•13m ago•0 comments

Damn Small Linux

https://www.damnsmalllinux.org/
1•grubbs•15m ago•1 comments

India weighs greater phone-location surveillance

https://www.reuters.com/sustainability/boards-policy-regulation/india-weighs-greater-phone-locati...
1•gdeglin•18m ago•0 comments

Real Policies to stop people using AI for cyberattacks, bioweapons, & more

https://app.excalidraw.com/l/7ULi4Jv3VIo/ATs5lrdppys
1•PhilosophyForAI•19m ago•1 comments

Increasing code performance with LTO [video]

https://www.youtube.com/watch?v=fPGodf5hNoo
1•edward28•22m ago•0 comments

I opened a shared notebook where anyone can add their favorite music playlist

https://clipnotebook.com/c84de082-65d1-4eaf-9449-ef48f67462dd
7•puildupO•22m ago•4 comments

Apple's chief chip architect has reportedly talked to Tim Cook about leaving

https://www.tomshardware.com/tech-industry/apples-chief-chip-architect-for-the-last-decade-has-re...
1•pseudolus•29m ago•1 comments

Asynchronous Circuit

https://en.wikipedia.org/wiki/Asynchronous_circuit
1•DustinEchoes•33m ago•0 comments

Programming Party Tricks [video]

https://www.youtube.com/watch?v=4KdvcQKNfbQ
2•marvinborner•34m ago•0 comments

Lessons Learned After Trying MeshCore for Off-Grid Text Messaging

https://hackaday.com/2025/12/06/lessons-learned-after-trying-meshcore-for-off-grid-text-messaging/
2•lxm•40m ago•0 comments

The Authentication Rabbit Hole: What I Learned from Vibe-Coding Auth with AI

https://fusionauth.io/blog/vibe-coding-authentication
3•mooreds•43m ago•0 comments

Show HN: Enterprise ad-blocker and privacy guard

https://zen.irbis.sh/enterprise
3•anfragment•53m ago•0 comments

Claude Diary

https://rlancemartin.github.io/2025/12/01/claude_diary/
2•aratahikaru5•57m ago•1 comments

HiRTOS: A high-integrity multi-core RTOS kernel written in SPARK Ada

https://github.com/jgrivera67/HiRTOS
2•jacques_chester•1h ago•0 comments

Multiplying our way out of division

https://xania.org/202512/07-division-again
3•ibobev•1h ago•0 comments

Show HN: I replaced my premium workout app with vibecode

https://strengthquest.lovable.app/
2•maddmann•1h ago•0 comments

NY judge orders ChatGPT conversation handover in newspaper copyright win

https://www.nydailynews.com/2025/12/03/ny-judge-orders-openai-to-hand-over-chatgpt-conversations-...
4•gnabgib•1h ago•0 comments

Oath of the Horatii

https://en.wikipedia.org/wiki/Oath_of_the_Horatii
1•andsoitis•1h ago•0 comments

AI chatbots can sway voters better than political advertisements

https://www.technologyreview.com/2025/12/04/1128824/ai-chatbots-can-sway-voters-better-than-polit...
1•gnabgib•1h ago•1 comments

Linux GPIB Drivers Declared Stable 53 Years After HP Introduced the Bus

https://www.phoronix.com/news/GPIB-De-Staged-Linux-6.19
5•LorenDB•1h ago•1 comments

Spinlocks vs. Mutexes: When to Spin and When to Sleep

https://howtech.substack.com/p/spinlocks-vs-mutexes-when-to-spin
28•birdculture•1h ago•4 comments

What Folk Can Do

https://folk.computer/guides/what-folk-can-do
3•luu•1h ago•1 comments

List of Common Misconceptions (Wikipedia)

https://en.wikipedia.org/wiki/List_of_common_misconceptions
4•greazy•1h ago•0 comments

Energy efficiency task scheduling algorithm for multi-core embedded platforms

https://www.sciencedirect.com/science/article/abs/pii/S0045790625008298
1•stevenjgarner•1h ago•1 comments

A Look into NASA's Coding Philosophy (2017)

https://observer.com/2017/07/a-look-into-nasa-coding-philosophy-kennedy-space-center-programming/
2•kristianp•1h ago•0 comments

Toyota Unintended Acceleration and the Big Bowl of "Spaghetti" Code(2013)

https://www.safetyresearch.net/toyota-unintended-acceleration-and-the-big-bowl-of-spaghetti-code/
5•SoKamil•1h ago•1 comments

The Ilya Sutskever interview – my key takeaways

https://quickchat.ai/post/ilya-sutskever-interview
2•piotrgrudzien•1h ago•0 comments

Show HN: Cdecl-dump - represent C declarations visually

https://github.com/bbu/cdecl-dump
6•bluetomcat•1h ago•2 comments

An Attempt at a Compelling Articulation of Forth's Practical Strengths and Eter

https://im-just-lee.ing/forth-why-cb234c03.txt
2•todsacerdoti•1h ago•0 comments