Failure with Etherpad installer

PS C:\Users\tomle> irm https://raw.githubusercontent.com/ether/etherpad/master/bin/installer.ps1 | iex ==> Etherpad installer [eval]:1 process.versions.node.split(.)[0] ^ Expression expected

SyntaxError: Unexpected token '.' at makeContextifyScript (node:internal/vm:194:14) at compileScript (node:internal/process/execution:422:10) at evalTypeScript (node:internal/process/execution:294:22) at node:internal/main/eval_string:71:3

Node.js v26.8.2 ==> Node.js >= 24 required. You have v26.8.2.

[process exited with code 1 (0x00000001)]

Note the actual code has double quotes around the split(".")

Server (please complete the following information):

• Etherpad version: latest
• OS: Windows 11
• Node.js version 26.8.2
• npm version 11.19.1
• Is the server free of plugins: Didn't get that far
• Are you using any abstraction IE docker?

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.