Launching soon: Looking for Advice

Hi Indiehackers :)

Ready for a human-typed, non-GPT post? 😅

TLDR; Need help with landing page - what is our biggest Hero point?

yakuraapp.com is a SaaS Webapp and software sales platform. Set up much like a popular gaming sales platform cough, our website does not focus on quick sales, lifetime deals on unfinished... we will create partnerships with dedicated professional Webapp developers who are serious about their platforms.

Website for Webapp sales and usage, user software library that can stay open during your workday/playday, users will install our desktop SDK platform to install/uninstall hardware and access their software library...

Best part, our SDK is seamless - Dev's use an installation file to integrate for Yakuraapp sales. After purchase, users immediately get an account with activated, appropriate key/token. No more stored keys, special passwords, creating login's and copy/pasting tokens etc.

I know the permanent personal library is a big thing, software won't get lost into a sea of darkness after a few uses, it'll remind users of their purchases and link them to see new updates the dev's have worked on with a single click. Huge for rediscovery, users are constantly reengaged.

Here's my problem; I'm not great at marketing and sales. I see so many great landing pages and I don't know where to start! What is a great hero section point to promote our website? I'm not sure if I should promote to Dev's or Users... or both at the same time?

I'm also hesitant to launch on Product hunt before preparing all this.

Thank you for your help!
-Lou