# Failures Behind a $420K/Month Solo Founder: I Read All 751 of Pieter Levels' Blog Posts

> Source: <https://dev.to/idonthaveapen/failures-behind-a-420kmonth-solo-founder-i-read-all-751-of-pieter-levels-blog-posts-1h3b>
> Published: 2026-07-07 06:48:21+00:00

Pieter Levels (levels.io) needs little introduction to most indie hackers: Nomad List, Remote OK, Photo AI, and a $420,000/month peak in 2024, all run solo. If you don't recognize the name, you may still remember the 2025 story about an AI-coded flight simulator that hit $1M ARR in 17 days while he built it live on stream. That was him.

Worth stating up front: this is one person, not a company. No co-founders, no employees, since 2014. The only things he outsources are customer support and server monitoring — and by his own account, that's a choice, not a funding constraint. $420,000/month annualizes to roughly $5M a year, the kind of revenue that usually comes with a headcount in the dozens. He's also one of the more prominent "build in public" figures, posting most of his numbers on X.

I saved all 751 of his blog posts (2008–2026) from RSS and worked through them with AI assistance — a close read of 41 posts, with the rest processed into a searchable reference. Every number below was human-checked against the original posts. That check wasn't a formality: it caught the AI inventing a plausible-sounding maxim and dressing up a paraphrase as a verbatim quote, and those spots were fixed against the sources. So this is not an article written by AI — it's one made with AI and inspected by a human.

Full disclosure: going in, I barely knew who he was — vaguely aware of the flight simulator story, nothing more. So I read with no prior narrative, working only from what's publicly posted. What stuck with me by the end wasn't "wow, $420K/month" — it was the failure count. This is a report on both numbers: the successes he's public about, and the failures.

Starting with the well-known side. Here's what he's posted publicly, in chronological order:

| Period | Number |
|---|---|
| 2008–2013 | First income source: a YouTube music channel. Peaked around $8K/month, then declined to $500–900/month as copyright claim disputes piled up |
| 2014 | Started "12 Startups in 12 Months" while income was falling and he was in a depressive stretch (Nomad List was one of the 12) |
| 2015 | $202,785 in annual revenue (one server, one MacBook, no office, $0 raised) |
| Feb 2018 | $52,843/month (Nomad List + Remote OK + a book) |
| May 2019 | Crossed $1M ARR — 4 years in. 11,996 customers, $115 average payment |
| Nov 2022 | AvatarAI hit $100,000 in its first 10 days |
| Sep 2024 | $420,000/month across all products (all-time high). ~80% margin; GPU costs alone were $60K/month |
| Mar 2025 | fly.pieter.com, an AI-coded flight simulator built live on stream, reached $1M ARR in 17 days |
| Mar 2026 | Photo AI hit $105,000/month, running on a single 40,870-line index.php file |

I included the first two rows deliberately, so the $202,785 in row three doesn't read as a cold start. 2015 was year 7 of the project, coming right after two years of declining income. This isn't a story about someone who hit it big immediately — it's seven years in, one rough patch, then a jump the following year, once you read it in order.

Two footnotes. "17 days to $1M" refers to ARR (the run-rate implied by that month's revenue), not $1M actually collected. And the 40,870-line index.php isn't a joke — he states it himself, the result of over a decade sticking to plain PHP with no framework.

One infrastructure number worth including: as of 2026, he's serving 4 billion requests/year across all his sites on self-managed VPS infrastructure for $2,932/year. By his own estimate, the same setup on managed cloud services would run $338,913/year — a 115x gap.

This is the part that matters. In a post titled "List of all my projects ever," he self-categorizes every project he's ever built — 113 total. Of those, **19 are tagged "Failed"** (didn't take off / never made money). That's about 17%.

Reading this as "so the other 83% succeeded" would be the wrong takeaway. Of the 113, at most 9 could reasonably be called revenue pillars. Most of the rest carry no success/failure tag at all — they're experiments that quietly died. The 19 "Failed" tags are just the projects he explicitly admitted failed; as an actual failure count, it's closer to a floor than a ceiling. By hit rate, we're talking under 10%.

In other words, behind the handful of projects that get named as wins, there are close to a hundred projects nobody's heard of. A few have documented reasons for failing:

The remaining roughly 15 are dismissed with a line like "never took off," with no real postmortem. There's an asymmetry worth naming here: **the more successful a product, the more detail he gives in hindsight; failures get a sentence.** Any read of self-reported data needs to account for that skew.

Reading 751 posts in order also surfaces the conditions under which this approach worked — the things to subtract before trying to copy it:

Even after subtracting all of the above, a few things seem genuinely portable for an indie developer anywhere:

**Don't build until you know there's a customer.** This carries weight specifically because it comes from a wasted year on Tubelytics. In practice: put up a payment link and a signup form before writing any code, and confirm someone will pay first.

**If upkeep costs next to nothing, don't kill a failed project.** The Hoodmaps pattern. Redefining "failure" as "does it cost money to keep running" rather than "did you shut it down" lowers the cost of staying in the game.

**Make your failures countable, and publish them.** Someone self-reporting 19 "Failed" tags out of 113 projects is rare, even among people who've succeeded publicly. Plenty of people write success stories. Far fewer publish the failure denominator — and that's what it takes to actually talk about odds.

One last thing. In systematic trading, there's a well-worn discipline: don't trust a good track record until you've verified whether it's skill or luck. I think public revenue numbers deserve the same treatment. $420,000/month is self-reported, not an audited statement. I'm not doubting the number — but I think the right way to read this kind of material is with the premise built in that **public numbers are a survivor's self-report.** Reading all 751 posts was, in part, a way to check that premise for myself.

All figures are sourced from his own blog at [levels.io](https://levels.io/) (specific post titles are noted in the text above). Numbers reflect the value at the time each post was written, not current figures.

*Originally published in Japanese on Zenn: https://zenn.dev/idonthaveapen/articles/levelsio-751posts-19-failures*