First sale on @rustskill.bsky.social !!!

Day 27/30 building @rustskill.bsky.social

Revamped the llm to be more concise in its questioning.

#buildinpublic #saas

Day 26/30 building @rustskill.bsky.social

Finished the mvp of the rag build. Professor crab now recommends learning materials in our knowledge base based off of gaps in the users knowledge.

#buildinpublic #saas

Week 1 of MVP launch wrapped up!

> Ads running at a 1% CTR (decent!)
> 65 🦀 developer sign-ups (solid!)
> Only 50% of signups actually tried a challenge (🚨🔴)

Users who did try it, loved it. We must have a UX issue of directing signups to their first free challenge.

We're pushing an update! LFG

Day 25/30 of building @rustskill.bsky.social

We launched the MVP yesterday and the first ad results are in!

>Spent €49.95 on Reddit ads
>⁠47k impressions / 225 clicks
>⁠0.58% CTR / €0.20 CPC
>⁠8 signups (3.5%) – low CTR but steady conversions

#BuildInPublic #RustLang #SaaS #DevTools #MVP

We've spent the whole week revamping our entire UX/UI

Landing + challenge page, ready for launch

Any feedback is appreciated!

#buildinpublic #learnrust #rustlang

Day 24/30 building @rustskill.bsky.social

Adding in a rag system to our llm so it can tell users what information they need to review based on the gaps in their knowledge.

#buildinpublic #saas

Day 23/30 building @rustskill.bsky.social

Updates are live!

#buildinpublic #saas

Yea man that’s simply entropy haha

Yea for basic lifetime issues I think it would help. But anything more complex and llms will fail simply because their ability to follow long abstract logic threads still isn’t quite there yet. And imo I don’t think llms as they are currently structured will be able to do ever do so

Yea especially not lifetime issues hahah

Day 22/30 building @rustskill.bsky.social

Our llm integration is finally behaving and talking like a real interviewer!

#buildinpublic #saas

This tends to happen when you try to program in patterns youre used to in other languages (especially cpp).

Nice! How’s it going with scout forge?

Day 21/30 building @rustskill.bsky.social

Updated landing page coming together nicely. Hopefully increases conversions

#buildinpublic #saas

Very true!

Pro tip when vibe coding: use Claude code for code generation and cursor for cleanup.

Day 20/30 building @rustskill.bsky.social

LLMs really suck at reading between the lines. Had to add in a bunch of specific commands to stop professor crab from doing some strange shit.

#buildinpublic #saas

More time consuming that complicated haha

Exactly!

Mainly been focused on the llm and fine tuning it to maintain a coherent questioning thread. Testing it is insanely time consuming though

Day 19/30 building @rustskill.bsky.social

Testing, testing and more testing.

#buildinpublic #saas

Day 18/30 building @rustskill.bsky.social

Mainly focused in on cleaning up the codebase ahead of Mondays release.

#buildinpublic #saas

Day 17/30 building @rustskill.bsky.social

Restructuring the question flow

#buildinpublic #saas

Day 16/30 building @rustskill.bsky.social

Tinkering with the cadence of questioning of the llm.

#buildinpublic #saas

Day 15/30 of building @rustskill.bsky.social

Tweaking the llm and fixing some of the challenges.

#buildinpublic #saas

How it started vs. how it's going 👀

#comingsoon #rustlang #saas #buildinpublic

Day 14/30 building @rustskill.bsky.social

Polishing up some of the challenges.

#buildinpublic #saas

Day 13/30 building @rustskill.bsky.social

Found some areas to improve on the llm whilst dogfooding the app.

#buildinpublic #saas

Ive been dogfooding @rustskill.bsky.social and I have to say the llm is already a very helpful tool. I have it implemented to use the Socratic method. Still needs a fair amount of improvement though as I find it still does not have very accurate questioning threads.

#buildinpublic #rustlang #saas