realtuan.bsky.social
@realtuan.bsky.social
Co-founder @theseuslabshq. Building @rustskill.bsky.social. Throwing Saas product ideas at the wall till something sticks.
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
November 11, 2025 at 4:29 PM
Reposted
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
November 10, 2025 at 10:56 AM
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
November 6, 2025 at 11:15 AM
Reposted
We've spent the whole week revamping our entire UX/UI

Landing + challenge page, ready for launch

Any feedback is appreciated!

#buildinpublic #learnrust #rustlang
November 3, 2025 at 10:50 PM
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
November 3, 2025 at 9:43 AM
Day 23/30 building @rustskill.bsky.social

Updates are live!

#buildinpublic #saas
October 31, 2025 at 8:58 PM
Day 22/30 building @rustskill.bsky.social

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

#buildinpublic #saas
October 30, 2025 at 6:37 PM
Day 21/30 building @rustskill.bsky.social

Updated landing page coming together nicely. Hopefully increases conversions

#buildinpublic #saas
October 29, 2025 at 3:29 PM
Pro tip when vibe coding: use Claude code for code generation and cursor for cleanup.
October 28, 2025 at 6:34 PM
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
October 28, 2025 at 6:04 PM
Day 19/30 building @rustskill.bsky.social

Testing, testing and more testing.

#buildinpublic #saas
October 27, 2025 at 10:14 AM
Day 18/30 building @rustskill.bsky.social

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

#buildinpublic #saas
October 25, 2025 at 1:25 PM
Day 17/30 building @rustskill.bsky.social

Restructuring the question flow

#buildinpublic #saas
October 23, 2025 at 1:20 PM
Day 16/30 building @rustskill.bsky.social

Tinkering with the cadence of questioning of the llm.

#buildinpublic #saas
October 22, 2025 at 5:16 PM
Day 15/30 of building @rustskill.bsky.social

Tweaking the llm and fixing some of the challenges.

#buildinpublic #saas
October 21, 2025 at 1:09 PM
Reposted
How it started vs. how it's going 👀

#comingsoon #rustlang #saas #buildinpublic
October 20, 2025 at 6:05 PM
Day 14/30 building @rustskill.bsky.social

Polishing up some of the challenges.

#buildinpublic #saas
October 20, 2025 at 11:22 AM
Day 13/30 building @rustskill.bsky.social

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

#buildinpublic #saas
October 18, 2025 at 3:13 PM
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
October 18, 2025 at 3:12 PM
Day 12/30 of building @rustskill.bsky.social

Improved llm context ingestion.

#buildinpublic #saas
October 17, 2025 at 8:24 PM
Day 11/30 building @rustskill.bsky.social

Finishing up the end to end tests for the platform.

#buildinpublic #saas #rustlang
October 16, 2025 at 2:31 PM
Day 10/30 of building @rustskill.bsky.social

Turns out memes do really well over other image formats when doing ads on Reddit. ctr jumped to over 1% on the best performing one.

#buildinpublic #saas
October 15, 2025 at 7:47 AM
Day 9/30 of building @rustskill.bsky.social

MVP is live at rust-skill.com

#rustlang #buildinpublic #saas
October 14, 2025 at 7:38 PM
October 14, 2025 at 10:58 AM
Reposted
MVP LAUNCH DAY.

🦀 Good morning, fellow Rustaceans
We're ready to rock your world

Follow and stay tuned, launching later today!

#SaaS #mvp #rust #rustlang #buildinpublic #devtools
October 14, 2025 at 9:11 AM