Three characters, .net, in the X-for-Y shape. P4E reads as platform for enterprise, power for everyone, or payments for ecommerce.
Payments for ecommerce is the most commercially loaded. Payment infrastructure is one of the most profitable corners of software and one where new entrants keep appearing despite the incumbents, because the market is enormous and fragmented by geography and vertical.
Power for everyone fits energy access work, and platform for enterprise fits B2B software generally.
The .net is well suited to any of them. For a payments or platform business the extension is entirely standard, and it keeps a three-character name reachable when the equivalent .com would not be.
Short names compound in value with use. Every email address, invoice, API endpoint, and support page carries the name, and three characters is as light as that load gets.
Listed for sale. Enquiries welcome.