The Encore

Weeks 12-16: Sensorhub is Almost Ready

There’s not much to share, and at the same time, a lot has happened.

Jan 6 • Kalo Yankulov

1

December 2025

Weeks 10-11: Launching 2 Businesses

I’ve been silent here for a reason.

Dec 5, 2025 • Kalo Yankulov

1

November 2025

Week 9: Testing a New Idea

Last week, I officially put Tarsis on ice after 100+ DMs and a BetaList campaign that together yielded only one positive response.

Nov 13, 2025 • Kalo Yankulov

2

Weeks 7-8: Invalidating Idea(s)

Last week, when I said I was going to try “less salesy messaging” for Tarsis and tap into my close network?

Nov 6, 2025 • Kalo Yankulov

3

1

October 2025

Weeks 4-6: The Reality of Validation

When Cold Outreach Falls Flat

Oct 30, 2025 • Kalo Yankulov

1

Weeks 2-3: Customer Development & Talking to People

Part of the "Building My Second Startup from Scratch" series

Oct 23, 2025 • Kalo Yankulov

Week 1: How I Research Startup Ideas

Part of the “Building My Second Startup from Scratch” series

Oct 3, 2025 • Kalo Yankulov

2

September 2025

Week 0: Coming Up With Startup Ideas

My approach to idea dumping..uh, I mean brainstorming. The good & and the bad ideas

Sep 18, 2025 • Kalo Yankulov

1

From Exit to Restart

A Framework for Navigating Post-Exit Uncertainty

Sep 12, 2025 • Kalo Yankulov

2