Who does what

Four roles touch the setup. One person can hold all four; in most companies they are three people with ticket queues.

Role	What they need	Steps	Time
Applane admin (whoever signs up)	A Google work account at your domain	Sign up, create the company, paste the values, run the checker	15 min
DNS owner	Access to your domain’s DNS	Add one TXT record	5 min, plus the ticket
GCP admin	Owner or editor on one GCP project in your organisation	APIs, IAM, budget, consent screen, OAuth client	20 min
Google Workspace admin	Super admin in the Google Admin console	Chrome extension policy, Apps Script check, two identities, Drive sharing	15 min
Builder	A Workspace account in the builders group	Install, sign in, turn on the Apps Script API once, build	15 min for the first app

The steps, in order

#	Step	Who	Time	Where	Page
1	Sign up and create the company	Applane admin	2 min	Applane console	Sign up
2	Add the applane-verify TXT record	DNS owner	5 min + queue	Your DNS provider	Verify your domain
3	Enable five APIs, grant one role, add a budget alert	GCP admin	10 min	Terminal or Cloud Shell	Set up the project
4	Consent screen (Internal) and OAuth client (Web application)	GCP admin	5 min	Google Cloud console	OAuth consent screen, OAuth client
5	Allow or force-install the extension; create the bot account and admin group	Workspace admin	15 min	Google Admin console	Chrome extension policy, Accounts and groups
6	Paste the project id, client id, group and bot into the console; run the checker	Applane admin	5 min	Applane console	Setup checklist
7	Install, sign in, turn on the Apps Script API	Builder	3 min	Chrome	Install and sign in
8	Build and deploy the first app	Builder	10 min	The extension	Your first app

Steps 2 to 5 do not depend on each other. Step 6 waits on all of them; step 7 waits on step 2 (the extension cannot find your tenant until the domain is verified).

With one engaged person who has every right, the whole thing takes about an hour. Across three teams with ticket queues, expect one to two weeks, almost all of it waiting.