Article
how to build in public on youtube, episode by episode
30 September 2026 · 8 min read
Post on Xthe short version
here is how to build in public on youtube without it eating your week. film short episodes about what happened, often, and let the ones under three minutes go up as shorts. once a week, put out one longer recap. keep every episode in one playlist, oldest first, starting with an episode 0 that says what you are building and why.
count episodes, not days. give every video a title that names the concrete thing it is about, and a description whose first sentence answers "what happened in this one". use the same cover layout every time.
that is most of it. the rest of this page is the detail, and where underway does each part for you.
why youtube is the best place to build in public
most platforms are feeds. a post lives for a day and then it is gone. youtube is also a search engine, and a video from month one can still be found in month twelve by someone typing the exact problem you solved in it.
it is the only big platform that holds shorts and long videos on one channel, and the only one where a playlist is a first-class way to watch. a build is a story in order. youtube is built to hold a story in order.
and it is where the people who matter later go to look you up. an investor, a hire, a customer checking you are real: eighty episodes of how you actually work is a better answer than any about page.
how to build in public on youtube: shorts often, a recap weekly
a long video every day is a burden nobody sustains and nobody watches. the rhythm that works is short episodes whenever you have one, plus a weekly recap for the people who want the whole week in one sitting.
| short episode | weekly recap | longer episode | episode 0 | |
|---|---|---|---|---|
| what it is | one thing that happened, in your own words | the week's episodes cut into one film, in order | a day with real energy and real things to show | what you are building, for whom, and where it stands |
| shape | portrait, a minute to three | landscape | landscape, several minutes | whatever you filmed it in |
| on youtube | a short, when three minutes or under | a normal video | a normal video | the first video in the playlist |
| how often | whenever you film | once a week | when you have the energy for it | once, at the start |
| who it is for | people scrolling shorts | people who want the week in one go | people already following | anyone arriving for the first time |
in underway, an episode of three minutes or under that you filmed portrait goes up as a short, with #Shorts in the description. a longer episode goes up in the shape you filmed it. on the series plan the week is cut on its own every sunday: the round-up takes lines from each episode in the order they happened, puts a card where each episode starts, ends on the most recent line about what happens next, and comes out landscape, which is the youtube shape.
the length of each episode is set by the interview, not the edit. underway aims for about three minutes of answers and stops at five. the cut removes filler and false starts; it never trims real content to hit a duration.
start with episode 0 and a playlist, oldest first
nobody arrives at episode 47 and scrolls back to episode 1. they need a door. episode 0 is that door: a short intro that says what you are building, who it is for, what problem it solves and what those people do today, where it honestly stands, the hardest part, and what you are setting out to do by when.
it also marks the start of a series. a channel with an episode 0 reads as a show. a channel that starts with a random tuesday reads as a feed.
- film episode 0 first. in underway it comes before your first numbered episode, whatever stage you are at.
- keep one playlist for the series, oldest first. when you post from underway, every episode is added to your series' playlist, so the whole run plays in order from one link.
- put the playlist on your channel's home page and link episode 0 in the channel description. both are settings in youtube studio.
- link the playlist, not a single video, anywhere you want someone to start watching.


count episodes, not days
"day 47" sounds committed until you miss a week. then you either post day 54 after day 47, a hole anyone can see, or you post day 48 and it is a lie. almost nobody starts on their actual day one anyway.
episode 47 is simply your 47th episode, honest whatever the gaps. it tells a viewer where they are without punishing you for having a life. underway numbers episodes this way and keeps your streak separately, private, counted against the rhythm you chose.
titles and descriptions that youtube search can read
a build in public video is found by someone typing a problem into youtube. the title has to name the problem in the words they would type. a mood is not a title.
- "a rough one" says nothing. "stripe webhooks failing in production" is a title someone searches.
- "big news!!" says nothing. "first paying customer for a dog walking app" is a title.
- "we're back" says nothing. "rebuilding the onboarding after users dropped off at step two" is a title.
- the first sentence of the description should stand alone as the answer to "what happened in this episode", naming the product and the thing you worked on.
- no puns, no pronouns doing the work of a noun, no hype. the facts stay yours.
underway writes both from what you said. the episode's name is written with the concrete noun in it, and it is the youtube title when you post. the description youtube gets is written for youtube, the fullest of the posts on the share tab, with its first line written to be quoted in a search result, and the chapters follow it. edit any of it in the box before it goes, and update on youtube sends a changed name or description to a video already up.
covers and thumbnails
a thumbnail is the first thing anyone sees. for a build, the best one is a real frame of you with a line you said across it and the episode number in the corner, or your title card. the same layout every time, so a row of them reads as one series.
- shorts don't take a custom thumbnail. youtube picks a frame. the page tells you so when you post one.
- a longer video gets your wide cover as its thumbnail, but only on a channel with a verified phone number. verify at youtube.com/verify, or set it by hand in studio.
- no shocked faces and no arrows. they promise a different kind of video from the one you made.
- nothing generated. a made-up picture in front of a real diary is exactly the wrong promise.
how to build in public on youtube if you filmed in private first
plenty of founders document before they are ready to say anything: a stealth product, a pivot, a job they haven't left. when they launch, they have months of footage and one question: how do you put it out?
not forty uploads into subscribers' feeds on one afternoon. youtube is the right home for a back catalogue precisely because of playlists: the whole run in order, oldest first, with episode 0 at the start, for anyone who wants the story from the beginning.
in underway, once your youtube channel is connected, the series on youtube card lists your live episodes. tick the ones to post and press the button, and they go up in order, oldest first, into one playlist on your channel, each with its own words. youtube allows about six uploads a day, so a long series takes a few days. a held-back episode is never on the list. the card is part of series, and of stealth launch, which includes ninety days of series.
alongside it, one launch video. on stealth launch, underway cuts a trailer from the vault itself, about a minute, ten to fourteen moments in order, each stamped with its episode and the date it was filmed. that is the video that points at the playlist.
what the channel needs, and what it doesn't
- it needs a consistent frame. same spot, same light as yesterday. nobody comes back for the lighting; they come back to find out what happened next.
- it needs captions. underway burns them in by default.
- it needs to keep going. a small channel still posting in month six beats a big start that stopped in week three.
- it doesn't need an intro sting, a subscribe plea, or a hook stolen from minute two. chronology is the honest structure, and in a series it is also the one people return for.
- it doesn't need you to become an editor. if it does, the channel stops.

faqs
should i post shorts or long videos to build in public on youtube?
both, at different rhythms. short episodes whenever you film, which go up as shorts when they are portrait and three minutes or under, and one longer recap a week. a long video every day is a burden nobody keeps up.
how do i make viewers watch in order?
one playlist, oldest first, starting with episode 0, featured on your channel page and linked everywhere you want people to start. underway adds every episode it posts to your series' playlist.
what should i call each video?
the concrete thing it is about, in the words someone would search: "stripe webhooks failing in production", not "a rough one". put the episode number in the video and on the cover.
does underway post to youtube for me?
on the series plan, post to youtube on the episode page uploads it to your own channel with the title, description and cover, after you press it. on founder, download the episode and paste the description yourself. nothing is ever posted on its own.
can i post a whole back catalogue at once?
yes, in order. the series on youtube card queues the episodes you tick, oldest first, into one playlist, a few a day because youtube limits uploads.
does it cost anything to try?
three episodes are free, no card. founder is £29 a month and series, which posts for you and cuts the week, is £79 a month.
where to go next
the same series as instagram reels: /building-in-public-on-instagram.
launching a vault of episodes you filmed in private: /coming-out-of-stealth-mode.
why the number counts episodes, not days: /why-count-episodes-not-days.