Greg Slauson, CEO of Proper Voltage, joins Paul Anthony to unpack how a career that started selling structured fixed income on a Goldman Sachs trading floor led him through a solar fintech rocketship, a caramel apple business bought with an SBA loan, and ultimately to building the intelligence layer that turns batteries from a limiter into an enhancer. Greg and Paul have been friends for 12 years, since they were randomly paired as summer intern roommates in Chicago, and Proper Voltage runs its accounting and tax through OpStart, so the conversation moves easily between deep technical detail and the real mechanics of building a company.

From there the conversation works through a founder's education the hard way: growing a capital markets team from two people to mid-twenties at GoodLeap, buying and operating Daffy Apple while juggling two other jobs at 90-hour weeks, and learning that a 40-year-old running an HVAC business often knows more than a fresh MBA. Greg is candid about why he walked away from fintech entirely, why he believes the back half of the 2020s belongs to hardware, and how that thesis led him to a six-person battery startup he convinced to hire him.

The result is Proper Voltage, the battery operating system that digitally adjusts voltage so products get full power through the entire discharge, enables new chemistries to plug into existing systems, and unlocks features like hot-swapping for robots and data centers. Greg and Paul close on the parts most founders underrate: why working capital is the lifeblood of a hardware business, why chasing headline revenue numbers can quietly kill you, and why the little things, down to whether a deck says Q1 or Q2, compound into trust.

In this episode, you'll learn:

- Why Greg optimized his early career around who he worked for instead of salary or title, and how that compounded over 12 years

- What buying and running a seasonal caramel apple business taught him that 90% transfers to companies of any size

- How Proper Voltage turns a battery from a product's limiter into its enhancer, explained through a power drill, a drone, and a Boston Dynamics backflip

- Why Greg believes humanoid robotics in 2026 looks like AI did in 2021, and what that means for the next three years

- How sodium-ion batteries change the safety and economics of data center backup power

- Why working capital, not just margin, determines how far a hardware company can scale without giving away equity

- The case for building slow and steady when VCs are pushing for zero-to-$60M in a year

In this episode, we sit down with Yuk Chi from Charter Space Technologies to unpack what it takes to build the financial and underwriting infrastructure for the space industry.

Yuk shares his journey from military engineering to space law, to working inside a satellite manufacturer—where he experienced firsthand how fragmented engineering data and compliance workflows can slow missions down and make insurance painfully difficult to obtain.

We discuss:

• Why space is missing the “middle layer” of capital (insurance → debt/credit markets)

• How better data and systems engineering can improve underwriting and reduce risk

• The real reason insurance can become a growth unlock for an entire industry

• A fascinating analogy: how a London coffeehouse helped create modern maritime insurance—and what that means for space today

🎙️ Guest: Yuk Chi, Charter Space Technologies

🌐 Charter Space: charter.space

X Yuk Chi on X/Twitter: @astrolawyer

Griff Eaton, founder of Juke, joins Paul Anthony for OpStart's first in-person interview to unpack how a frustrated night at the Livery in Benton Harbor turned into a venture-backed platform now reshaping live music in cities across the country. Griff walks through the three barriers that kill the simple act of tipping a local artist (no cash, awkward walk to the stage, no idea what songs they actually play) and the PowerPoint-and-paper-printouts prototype he ran with the Justin Stoblin band to prove people would pay if those frictions disappeared.

From there the conversation moves through a real founder's gauntlet: relaunching after COVID killed his first wedge, winning Notre Dame's McCloskey New Venture Competition for $50K, getting the call from Tim Connors, joining Platform Venture Studio, and going upmarket with Kids Bop's Live Nation tour, Wembley, Red Rocks, and a surreal Zoom with Matchbox Twenty during the Barbie bump. Griff is candid about what didn't work, why chasing huge tours wasn't a sustainable channel for Juke, and how he and the team came back to the original problem with a sharper lens.

The result is "Music Town," Juke's city-partnership model where economic development teams, venues, and local artists plug into a single platform, with QR codes routing every show in a city to one place. Griff and Paul close on the lessons every first-time founder needs: when to pivot, when to commit, why fun is a real competitive advantage, and how to keep building when the easy answers are gone.

In this episode, you'll learn:

● The three barriers that block live-music tipping and song requests, and why removing them changes the economics for local artists

● How Griff validated the idea with a PowerPoint slideshow, paper song lists, and a TV he carried in from his living room

● What winning the McCloskey New Venture Competition actually unlocked beyond the prize money

● Why joining Platform Venture Studio reshaped Juke's go-to-market and what founders should weigh before going the studio route

● What stadium tours with Kids Bop and conversations with Matchbox Twenty taught Griff about scale, timing, and creative production

● Why Juke pivoted back to local venues and built the "Music Town" city-partnership model

● The case Griff makes for keeping fun at the center of an early-stage company, and why it compounds

Connect:

● OpStart: https://www.opstart.co

● Paul Anthony on LinkedIn: https://www.linkedin.com/in/paul-anthony-8a256087/

● Griff Eaton on LinkedIn: https://www.linkedin.com/in/griffin-juke/

● Juke: https://juke.band/search

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#OpStart #Juke #LiveMusic #StartupPodcast #FounderStory #MusicTown #SouthBend #Elkhart #VentureStudio #SmallBusiness #StartupLife #LocalMusic #Entrepreneurship #MusicTech #FoundersJourney