Building Sideline, an AI sales coach for B2B AEs on live calls. Prev co-founder/CEO in B2B Healthcare, ran founder-led sales for 2 years. Building in public.
I'm Matt. New here, starting from zero.
For the last 2 years I was co-founder/CEO at CareBeam, a B2B SaaS company in healthcare. I ran founder-led sales the whole time.
I was decent at selling. I occasionally froze on calls I should have won, forgot the one question that mattered, and only figured out what went wrong on the replay hours later.
So now I'm building Sideline: an AI sales coach that gives B2B reps prompts live on the call, and a real debrief after.
I'll be building it in public here: cold email numbers, product progress, and everything I got right and wrong selling at CareBeam.
If you carry a quota or you sell your own startup, I would love to chat. What are you selling right now?
Today's (11/11) build in public stats:
- Cold emails sent: 386
- Opens: 75
- Replies: 1 (negative), testing new variant landing pages for tomorrow
- Waitlist claims: 0 (not expecting claims every day, this is B2B)
- X followers: +6
- X posts published: 3
- Cleaning up Sideline backend for beta launch next week
If you're out there building, drop your wins/learnings for the day π