Founder Playbook · The Bootstrapped Founder
11 tactics from Dominic Monn
Dominic Monn — Crafting a Thriving Online Mentorship Community
Watch the full episode“Marketplace are a people business so this is kind of the the background that you need to have to to build a business like that... Marketplace are a wonderful business because you you don't need to build a ton of features you just need to build out the people”
Marketplaces are a people business, not a features business
Coming at marketplaces from a typical SaaS founder mindset (build features, sell features) is exactly why bootstrappers fail at them. The product is intentionally slim; the work is recruiting, vetting, and curating the human supply side. If your strength is software/design and not people-work, marketplaces will fight you. If your strength is community / audience / sales, marketplaces are a perfect fit — even with little coding skill.
“I was embedded in all those self- teing communities that were just hungry and longing for mentorship and so I kind of already had one of the sites or at least access to one of the sites and so the second part was finding those mentors”
Bring one side of the marketplace from a community you already serve
Two-sided cold starts are why most marketplaces die. Skip half the problem by entering with one side already pre-built — an audience, a Discord, a newsletter, or a community where you're a known voice. Dominic came from self-taught dev communities that already wanted mentorship, so he only had to manually sell mentors into the platform. If you can't bring one side, don't start the marketplace yet.
“Mentor Cru right now I would call it feature complete you could say like it's a perfectly fine marketplace... I'm actually the only one writing code and I do it about two days per week maybe not even... we get by by doing maybe like 10 hours of coding per week as a company”
Declare your marketplace feature-complete and invest in systems instead
MentorCruise as a 5-person, ~$40K MRR business writes roughly 10 hours of code per week total. The trap is treating the marketplace like a SaaS and shipping endless features. Instead, get to feature-complete fast (booking flow, chat, billing, dashboard) and reinvest the engineering capacity into operational systems — moderation, vetting, mentor success, billing edge cases. Each system improvement benefits every user; each feature usually benefits a handful.
“the first let's say a 100 mentor have been really hard and you know that was just manual labor cold yamming cold emailing on mass um we never really found a channel where we can get people in at scale... probably north of 2,000 messages to get the first 100 people or so”
Expect ~2,000 manual DMs to land your first 100 supply-side participants
Set your expectations for the cold-start phase: ~20 DMs / cold emails per signed-up mentor or supplier. No clever channel exists — only sustained, personalized outreach until inbound builds. Dominic sent 2,000+ messages to land the first 100 mentors. Today MentorCruise has zero outbound and 80% rejection of inbound applications. The grind is the price of getting to the inbound phase.
“my product designer Maggie shout out to Maggie um is someone who actually worked on a case study about Mantra Cruz for her like boot camp project uh and so she she reached out to me and said hey I'm working on this case study... in the exact moment I was hiring for a product designer”
Hire from your engaged users — case-study writers and community members
Highest-leverage hiring pipeline for a founder-led business: people already engaged with your product — case-study writers, active community members, frequent reviewers. They show up understanding the product, the audience, and the founder before the interview starts. Whenever someone sends you their personal teardown / case study / fan project, file it. The next hire usually comes from that file, not from a job board.
“if someone comes in and they charge $10,000 for one call call and then we get a charge back and it might be like messy with Marketplace and so on and money needs to go different places and so on we might end up with like a pretty big Bill ourselves um but I think people can come in they have a certain limit let's say you know $300 per month”
Cap individual transaction size on your marketplace to bound chargeback risk
On a marketplace you carry the chargeback risk when transactions go bad — even though the supplier kept the money long ago. Set explicit per-mentor / per-listing price caps that match your reserve cushion. MentorCruise started supply-side caps around $300/month and progressively lifted them as the business matured. Don't accept $10K-per-call listings until you can absorb the chargeback without losing a month of profit.
“I think it just changes the perception of M Cruz as well now it's not like a little hacker site where you can you know get a coding Mentor for 40 50 bucks now it's like one of the largest open coaching marketplaces where there's something for everyone... we actually have like people that are pretty high up at Google that are overseeing stuff like Gmail”
Raising the price ceiling repositions the entire marketplace
The ceiling on your marketplace pricing isn't just a number — it's the brand signal. When MentorCruise allowed $500-$1500/month mentorships, the platform stopped reading as a "$50 coding tutor" site and started attracting Google leadership as both buyers and mentors. Both sides matured together: the high-tier mentee tolerated the high-tier price tag the low-tier mentee complained about. Lift the ceiling deliberately and the audience rises with it.
“one that I really like is time to first sale which is basically how long does it take for a mentor uh that joins Mentor Crews to get their first Mente uh and that's like a really crucial metric... you have liquidity so how much of you or how many of our mentors currently work with a Mente how much of our supply is actually on use right now”
Track marketplace-specific metrics SaaS founders ignore: time-to-first-sale, liquidity, GMV
MRR alone hides the structural health of a marketplace. Add: (1) time-to-first-sale per supplier — how fast new mentors get booked; (2) liquidity — % of supply actively earning right now; (3) GMV — total transaction volume flowing through, not just your cut; (4) demand:supply ratio. These are the leading indicators of marketplace health. If time-to-first-sale rises, your supply is outpacing demand and you need to brake supply onboarding.
“there's a a really interesting case study about Airbnb where they also track uh retention ured even though there's no subscription because they estimate that people book One Vacation per year uh with Airbnb and so their retention is basically one one booking per year”
For non-subscription marketplaces, define retention against expected booking frequency
Just because you're not subscription doesn't mean you stop tracking retention — you redefine it. Estimate your category's natural booking cadence (Airbnb: ~1 trip/year, MentorCruise: per-session or per-package), then measure whether buyers come back at that cadence. Without this number you can't tell whether marketplaces are leaking buyers or just operating at their natural frequency.
“with stripe you get the endtoend experience right like you get the checkout where you add your credit card and whatever and then you can basically just write I mean really it's like fuck lines of code to say hey I want to get 20% of that and 80% of that get get go to the the mentor... legally speaking and in terms of like bookkeeping and accountants it becomes a thousand times more complex as soon as you touch that money because then you're the Merchant of record”
Use Stripe Connect so the money never touches your books
The default "collect money in our Stripe, pay out via payroll" pattern makes you the Merchant of Record on every transaction — exploding your bookkeeping, VAT exposure, and chargeback liability. Stripe Connect splits funds at the source: 20% to you, 80% to the mentor, you never "see" the supplier's money. Few lines of code, dramatically simpler accounting, lower risk. Use it from day one — retrofitting is painful.
“I moved the business to the US um so man Cruz is man Cruz Inc right now it's in Wyoming I used the service like a lot of the other services and very quickly uh we went from I need to go to 10 accountants and pay quite a bit of money to basically get no answer to a new bookkeeper that is able to tell me yeah just send me your stripe report super easy”
If you're European, incorporate in Wyoming/Delaware to skip the VAT/accounting maze
Continental European tax codes (especially Germany) are openly hostile to small online businesses — Dominic got 4 contradictory VAT answers from 4 accountants for the same marketplace. Setting up a Wyoming LLC via a registration service lets you forward the entire Stripe report PDF to a US bookkeeper and be done. You stay locally employed as the company's employee. The Sheridan, Wyoming PO box is becoming a common destination for solo European founders for exactly this reason.