Nov 26, 2024 · 32m · y-combinator
How To Start A Dev Tools Company | Startup School · Y Combinator
0:00 / 0:00
▶ Watch on YouTube →
gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
In this Y Combinator Startup School lecture, former Algolia co-founder Nicolas Dessaigne provides a practical framework for founding, building, and scaling a developer tools company. He outlines strategies for technical co-founders, iterative product launches, open-source monetization, founder-led sales, and developer-focused marketing.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. How this is scored →
The partners as informed peer 0.0 Guest teaching 0.0 Guest disagreement 0.1 The partners pushing back 0.0
speaking balance: gold is the partners, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 6:45 Pushing back against the standard requirement of hiring a business co-founder
Dessaigne firmly dismisses conventional startup advice that developers need a business co-founder, pointing out that 74% of YC DevTool companies thrive with tech-only founders.
Hardest push from the partners ▶ 0:32 Monologue format - no host pushbackAs a solo presentation with no interviewing host or moderator counter-arguments, there is zero host pushback.
Biggest teaching moment ▶ 3:30 Categorizing runtime versus build-time software valueDessaigne delivers a direct instructional breakdown explaining why runtime critical infrastructure commands vastly superior business moats compared to build-time utilities.
The partners hold their own ▶ 0:32 Monologue format - no host engagementThe episode is an uninterrupted solo lecture, precluding any host interventions or counter-expertise.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | The partners as informed peer | Guest teaching | Guest disagreement | The partners pushing back | Why |
|---|---|---|---|---|---|---|
| Presentation Agenda and Topic Overview | 0 | 0 | 0 | 0 | Solo Startup School lecture by Nicolas Dessaigne laying out the agenda and defining developer tools. With no host presence or counter-arguments, interaction metrics are zero. | |
| Evaluating Ideas: Build-Time vs. Run-Time Tools | 0 | 0 | 0 | 0 | Dessaigne breaks down build-time vs run-time ideas and discusses monetization challenges in open source libraries and LLMs in a structured educational presentation. | |
| Common Mistakes in the Founding Stage | 0 | 0 | 1 | 0 | Dessaigne debunks the common myth that technical teams need a dedicated business co-founder early on, citing YC data that 74% of DevTool companies have only technical founders. | |
| Finding Early Users Through Targeted Outreach | 0 | 0 | 0 | 0 | Solo instruction on executing early outreach and personalizing messages to fellow developers rather than using spammy marketing templates. | |
| Launch Strategies and Leveraging Hacker News | 0 | 0 | 0 | 0 | Explaining the strategic value of Show HN on Hacker News and how to handle harsh community feedback gracefully. | |
| Doing Things That Don't Scale and Operational Traps | 0 | 0 | 0 | 0 | Instruction on avoiding common operational traps like choosing unfamiliar stacks for novelty or overbuilding prior to user validation. | |
| Go-To-Market and Selecting Business Models | 0 | 0 | 0 | 0 | Comprehensive taxonomy of go-to-market strategies, open source licensing, hosting tiers, and usage-based pricing models. | |
| Founder-Led Sales and Hiring Timeline | 0 | 0 | 0 | 0 | Recommending founders handle sales until 1M ARR and explaining why technical founders excel at selling to engineers. | |
| Technical Demos and Bottom-Up Enterprise Expansion | 0 | 0 | 0 | 0 | Recommending live demos over slide decks and outlining how bottom-up developer adoption expands into enterprise contracts. | |
| Documentation as Marketing and Engineer Support | 0 | 0 | 0 | 0 | Reframing documentation and engineer-led technical support as high-impact marketing engines. | |
| Marketing Structure and Developer Advocates | 0 | 0 | 0 | 0 | Discussing why traditional CMOs fail at dev tools companies and detailing the realistic timeline for hiring developer advocates. |
Statements from this episode (38)
Dessaigne: Dev tool founders must be developers themselves
“And the key aspect of DevTool is that you are going to build a technical product for developers. Obviously, you need to be a developer yourself.”
LLMs can turn previously bad developer tool ideas into successful ones
“The bad ideas, the target ideas of yesterday could actually be possible to make successful now thanks to LLMs.”
Runtime developer tools are critical must-haves; build-time tools are nice-to-haves
“Doug, QA, testing, all of these ideas are build time ideas. Things, tools you are going to use when you are building the software. It happens that these ideas are mostly nice to have. You could build your product without them. What's more interesting are runti…”
Dessaigne: Runtime developer tools naturally align pricing incentives with customer growth
“The other advantage of these runtime ideas Is usage. Because the more your customers are going to grow, usually the more they are going to use your product. So your incentives are aligned.”
Dessaigne: Software libraries and frameworks are very difficult to monetize
“Another quick category, ah, that I can touch upon is libraries and frameworks. These can be great ideas. Usually open source. But they can also be very challenging to monetize.”
Offering cloud hosting is the only way to monetize open-source libraries
“The one way you can monetize these ideas is by offering a hosting service. Think about Next.js and Verso, for example.”
Dessaigne: Dozens or Hundreds of Startups Are Building LLM Observability
“Many other companies think the same thing, and that's why we have dozens, if not hundreds, Of such companies out there.”
Half of all Y Combinator startups eventually pivot from their first idea
“You may not realize, but 50%, half the companies in YC, eventually pivot from their first idea.”
74% of YC dev tool startups have exclusively technical co-founders
“74% of YC DevTool companies had only tech co-founders, and that's compared to 45% for all of the other companies.”
Founders should expect to throw away 90% of their early startup code
“Rule of thumb, I would assume that you'll throw away 90% of all the code you write. So your goal at that stage is just to identify the 10% of what you're building that's actually valuable as fast as possible.”
Algolia closed its first $2,000/month deal with only a command-line demo
“Actually, I still remember our first customer, that first meeting, when I did a demo using a command line to index content. We didn't have any API client yet. We didn't have any admin UI yet. Just a command line and then a very simple webpage to show the searc…”
Early dev tool startups must use outbound; bottom-up inbound adoption fails
“DevTool co-founders often plan to have a bottom-up adoption model where individual developers are going to come inbound, try the product, and convert. Or maybe become their champions at bigger companies. Well, I have some bad news for you. Nobody knows you yet…”
Dessaigne: Hacker News is the best launch platform for dev tools
“The best place to launch for DevTools, I would argue, is Hacker News.”
When responding to haters online, founders should aim to convince third-party observers
“Some of them are going to be haters and be rude. Well, you should engage with them too, but your goal is not to convince them. It's just to convince any other readers who are going to read how you reply to these haters.”
Dessaigne: Early Stripe team manually onboarded customers side by side
“Early on, the Stripe team were going to their customers, small startups, and they helped them implement their own product, sitting side by side in front of the computer coding with them.”
Dessaigne: Do not hire anyone before validating product value
“Very early on, you don't even know if your product is providing value. Please don't hire anyone until you have convinced yourself you're working on the right idea.”
Dessaigne: Developers will not build on closed-source new frameworks
“Developers wouldn't implement on top of a new framework that is not open source.”
Dessaigne: New databases and APIs handling sensitive data must be open-source
“A new database would need to be open source or an API connecting with sensitive data in a CRM or maybe an EHR needs to be open source.”
Open source startups should not count on community contributions for code
“In the case of Airbyte, they got a lot of connectors contributed from the community, but I would be careful on that one. Most cases, you shouldn't count on them, because the quality of the contribution may not be up to your standards, and then you have to deal…”
Being open source shortened Medplum's enterprise sales cycle by over a year
“Take the example of Metplum, for example, who is building a open source EHR. The fact that they are open source, I would argue, probably help them shorten their sales cycle with enterprises by a year or more.”
Charging for support incentivizes open-source startups to build overly complex products
“And finally, some open source companies charge for support and services, but I would actually discourage you to follow that monetization path because your incentive becomes to build the most complex product possible so you can charge for support and services. …”
Dessaigne: If a founder cannot sell their product, nobody else can
“If you as the founder cannot sell your product, Nobody else can.”
Dev tool founders should reach $1M ARR before hiring their first salesperson
“As a rule of thumb, I would wait to get to about one million AR before hiring your first salesperson.”
Dessaigne: PostHog's sales leader is also the company's CTO
“Did you know the team, the CTO, is also their sales leader? Not a business leader. Their sales leader is also the CTO.”
Dessaigne: Live demos are the best sales approach for dev tools
“You should show, not tell. Just do demonstrations. I think that's the best sales approach you can do for DevTool.”
Algolia scaled to $10M ARR without ever using a sales deck
“At Algolia, we didn't have a sales deck before we got to ten million ARR.”
Algolia lost deals with non-technical buyers but won with technical buyers
“When the buyer is not technical and wants a turnkey solution, we always, not always, but most of the time, we actually lose the deal. But when the buyer is technical, or if tech has a lot of influence in the decision, we win way more often.”
Dessaigne: Dev Founders Should Offer Help in Communities Instead of Pitching
“Your goal is not to sell your product just yet here. Just be helpful. Just establish yourself as the expert. And of course people are going to start knowing you and trust your brand, your company. That will help you down the line. People will think about you w…”
Dessaigne: Supabase Bundles News into Quarterly Launch Weeks for Maximum Noise
“Superbase is doing that once a quarter, bundling all their news in one week a quarter to make as much noise as they can.”
Dessaigne: Documentation is marketing for developer tools products
“Documentation is marketing. That's how people are going to interact with your product. That's actually the first place people are going after your homepage and maybe a pricing page.”
Dessaigne: Algolia features were not considered complete until documented by developers
“At Algolia, we decided that the feature was not ever done until the doc was done. And documentation should be written by developers.”
Developer tools companies should have their software engineers directly handle customer support
“Developers hate speaking to these level one support people who don't know anything about the product they are supporting. Engineers should do support, and that's going to lead to two great things. One, your users are developers, and when they interact with dev…”
Algolia waited until reaching hundreds of employees before building a support team
“Taking the example of Algolia again, we actually waited until hundreds of employees Before we built a dedicated support team. And then we actually asked our best engineering manager to build that team.”
Dessaigne: Dev tool founders should lead marketing for a long time
“Well, similarly to sales, I think founders should lead marketing for a long time, maybe forever, actually.”
No developer tool company is happy with a traditional marketing CMO
“To be honest, even at later stage, I don't know a single DevTool company that is happy with their CMO when they have a traditional marketing background.”
Algolia required every engineer to execute a marketing hack every single month
“Well, early on at Algolia, we were actually asking every single engineer in the team to do what we called a marketing hack every single month.”