▲ 9 r/WebXR

Turned my vibecoded VR experiment into a prompt-to-WebXR tool. Would love feedback

posted here a month ago about vibecoding a VR game with R3F + webxr. it worked well enough that i kept going and turned it into an actual tool https://turbl.dev

you type a prompt, it generates a webxr scene (pmndrs/xr) and gives you a URL that opens in the quest browser. no build, no sideload. the clip is just me prompting one and stepping into it.

i see people in this sub building genuinely cool stuff, and that's exactly where i want this to get to.

would love it if you tried it. free to start, and if you run out of credits just DM me and i'll top you up.

u/fermatf — 12 days ago

Turns out claude design is pretty good for short product demo videos if you add voiceover on top

ive been using claude design for short animated videos, and product demos turned out to be a good fit. the animation alone is fine, but adding a voiceover and some background music is what made it actually feel like a real demo instead of just shapes moving around.

the part that mattered most was priming claude design before the real prompt. i paste a short primer first that tells it to pace text for actual human reading speed and hold each beat a second or two after it lands. before i did that the text would flash by too fast to read. after, it just works.

rough loop:

  1. plan the scene in regular claude.ai first, let it push back on pacing
  2. prime claude design with the pacing rules, then paste the real prompt
  3. iterate until it looks right
  4. ask claude in the same chat for a voiceover transcript matching the timing
  5. add the voiceover and a background music track, export as mp4

full writeup with the actual primer prompt, the voiceover prompt and the source project is here: https://claude2video.com/blog/how-to-make-a-product-demo-video-with-claude

(small disclosure, the export tool at the end is mine.)

anyone else making this kind of thing in claude design? curious what others do for the pacing problem

u/fermatf — 1 month ago

I stopped reading my hermes output and started listening to it in my podcast app. Didnt expect this to stick

small thing but it changed how much i actually use my agent. i used to get hermes to pull together briefings, summaries, the occasional long research thing, and then it would just sit in my telegram unread.

few weeks ago i started routing the output to a podcast feed instead. tts, host the mp3, append to an rss xml, subscribe in apple podcasts. now whatever hermes produces just shows up as an episode and i listen on the drive or while cooking.

the substack thing is the part that got me. paste an article i was never going to read, few minutes later its an episode. i go through way more of my backlog this way than i ever did staring at text.

i wrapped the whole flow as a skill and mcp server so you dont have to glue the tts and hosting and rss together yourself (cast0.ai/hermes, you bring your own openai key). point hermes at it and it just works. can answer setup questions in comments.

anyone else here listening to their agent output in podcast apps, or am i alone in finding this kinda magical

reddit.com
u/fermatf — 1 month ago

How i make 30 second product demos with voiceover in 20 minutes (solo, no design skills)

needed a demo video for my landing page and didn't want to pay fiverr $300 for something generic. options i looked at:

  • fiverr: $200-500, takes a week, looks like every other saas
  • loom: free but my product UI wasn't even finished
  • motion designer on upwork: too expensive for an mvp

figured out a workflow that takes ~20 minutes and looks better than the fiverr stuff. sharing because every solo founder i talk to hits the same wall.

the workflow:

  1. plan the storyline in claude.ai. not visuals, just the story beats. user has problem → tries thing → product solves it → outcome. 4-5 beats, max 30 seconds.
  2. paste it into claude design and let it animate. this is the part i didn't know existed. it generates actual animated scenes from text, not static mockups. (it still produces weird timing on the first try sometimes, you'll re-prompt 2-3 times.)
  3. ask claude in the same chat to write a voiceover script, run it through a tts model.
  4. export as mp4. (small disclosure: this last step is where my own tool comes in, claude2video.com. claude design only gives you a share link, not a downloadable video, so i built the exporter for my own use first.)

i use these everywhere. landing page hero, launch tweets, replies to "what does it do" cold email questions.

wrote up the full step-by-step with the exact prompts and a sample video. link to that in comments

can share the claude design file if anyone wants to fork the layout.

reddit.com
u/fermatf — 2 months ago
▲ 3 r/vrdev+1 crossposts

Anyone here vibecoding VR games? What stack do you use?

curious if people here are vibecoding VR games and what stack works best for it.

i tried React Three Fiber + webxr on quest 2, mostly LLM-written code, worked surprisingly well on first try.

want to try Meta's Immersive Web SDK next.

what do you use? unity with copilot? unreal? something on the web? what worked for vibecoding?

reddit.com
u/fermatf — 2 months ago
▲ 9 r/WebXR

Tried vibecoding a VR game with R3F + webxr, anyone else?

quest 2, mostly LLM-written code. worked surprisingly well on first try.

now looking at Meta's Immersive Web SDK. anyone tried it or going to?

curious what you used and how it went.

reddit.com
u/fermatf — 2 months ago

Turned my OC morning briefing into a podcast feed in apple podcasts and listen on the drive to work. Kinda addictive

morning news briefing seems to be one of the more popular openclaw use cases here. mine worked fine, but reading it on a phone before coffee was always the worst part of it.

so a few weeks ago i wired the briefing output into a podcast feed. tts the text, host the mp3, append it to an xml that serves as my rss. subscribed to it in apple podcasts. now i just get in the car at 7:30 and the briefing is already there waiting.

then i kept finding more uses for it. i paste a substack article to it and a few minutes later it pops up as an episode i can listen to later. weirdly addictive. i listen way more now than i used to when it was just text.

workflow is not complicated if anyone wants to build their own. i also packaged it as an mcp server in case someone wants to skip the build (you bring your own openai key). happy to answer setup questions in comments either way.

curious if anyone else here is piping their oc output to a podcast app, or if i am alone in finding this kinda magical

reddit.com
u/fermatf — 2 months ago
▲ 419 r/hermesagent+1 crossposts

Letting my OpenClaw buy groceries went fine for 3 months. But yesterday it ordered 40 heads of garlic.

gave it my card a few months ago to handle weekly grocery runs using mcp server. ran great. every sunday a normal basket, normal price, picked stuff i actually eat.

yesterday it ordered 2 kg of garlic instead of 2 heads. the kg unit was the default on that product page and it didn't notice. i didn't notice either because for 3 months it never screwed up.

so now i have a garlic situation. anyone else letting their agent shop and have a similar story, or am i the only one who got too comfortable

reddit.com
u/fermatf — 2 months ago

hey, sharing cast0.ai publicly for the first time. it's free for now and i'd love some feedback before i mess with it more.

backstory: couple of months back i was playing with nanoclaw and i love listening to audiobooks and podcasts. so i hacked together a script that takes the agent's output, runs it through TTS, and pushes it to an RSS feed i'm subscribed to in apple podcasts.

then i told the agent "go research X" and walked away. like 10 minutes later my phone pings, new episode in apple podcasts. it's just my agent reading what it found. no two-hosts-pretending-to-talk like notebooklm, just the transcript as audio. and that's exactly what i wanted.

i've been using it every day since. morning briefing, hacker news digest, summaries of long articles i won't read otherwise. it sits in my podcast app next to the actual podcasts i listen to which still feels weirdly cool.

couple of weeks ago i decided to turn it into a product so other people can try it without setting up the pipeline themselves. one API call from your agent, episode shows up in your podcast app. that's the whole thing.

would be super grateful for any feedback, especially if something breaks. (and if you have ideas for what your agent should be reading to you, i'm collecting use cases.)

u/fermatf — 2 months ago

At work there was always someone reacting to a slack message or saying thanks for handling something. i thought it was just noise. apparently it was doing more than i realized

Now its quiet and im second-guessing things i used to just ship. didnt expect that

Anyone else experience similar feelings when they went solo ?

reddit.com
u/fermatf — 2 months ago