Latest · AI short
Even knights need a break.
A quiet break in a poppy field with my own AI character. Recreated in Higgsfield from @Kaye.creates’ tutorial.
All 2 AI videosBilly Xu · Everyday AI user, independent builder
Useful, fun, cool things.Made with AI.
I use AI every day, at work and at home, and keep what genuinely helps: two free Mac apps I built for myself (one for dictation, one that lives in the notch), short films starring my own AI character, and small experiments you can play with. I write down what worked and what didn’t.
Mac app · free · 0.2.4
PushSense
Hold a key and your words land at the cursor, or click the buddy and drag them into any window. Recognition stays on your Mac.
See how it worksMac app · free · new
KumoNotch
When your Mac’s fans get loud, it tells you which app did it. Plus what’s playing, your next meeting and everything you copied, all in the notch.
See how it worksWriting
Used. Built. Learned.
Verified Vibe Coding: Let AI Write Fast, Then Make It Prove Itself
My workflow: use Claude to write code 10× faster, then measure whether the result actually works. Agent workflowThe Buddy: A Second Way to Talk to PushSense
Push-to-talk assumes you already clicked into the right box. Buddy mode drops that assumption: click a pearl, talk, and drag the words into any window. Here is what it took to build, and the three bugs synthetic clicks caught before shipping. PushSense
My Digital Fly’s First Lesson: Lift One Leg
I built a digital fly lab on my Mac. Its first lesson tests a small learning loop: see an image, choose an action, receive feedback, and save the parameters for next time. Experiment
Lab
A little room to play.
Design · Qwen 3.8 · Ornith 1.5 · Astra reference Meridian. A study in precision. Cold silver, glass, and a mechanism you can explore. Two local OpenCode builds and an independently authored reference. 
Design · Qwen 3.8 · 27B / Qwen 3.6 · 35B A phone that folds on screen. The same fictional product brief, interpreted by two local models. Explore the page beyond its first impression. 
Play · Qwen / Gemma · archive labels A little race, two interpretations. Two horse-racing prototypes from the archive. Start a race and see what the screenshots cannot tell you. Follow along