alt Hacker News> We have an akka app before the BUSL and it is a PITA to maintain
I would imaging the non-Scala use case to be less than ideal.
In Scala land, Pekko - the open source fork of Akka is the way to go if you need compatibility. Personally, I'd avoid new versions of Akka like the plague, and just use more modern alternatives to Pekko/Akka anyway.
I'm not sure what Lightbend's target market is? Maybe they think they have enough critical mass to merit the price tag for companies like Sony/Netflix/Lyft, etc. But they've burnt their bridge right into the water with everyone else, so I see them fading into irrelevance over the next few years.
I actually do have some decision-making power in regards to what tech I use for my job [1] at a mid-size (by tech standards) company, and my initial plan was to use Akka for the thing I was working on, since it more or less fit into the actor model perfectly.
I'm sure that Lightbend feels that their support contract is the bee's knees and worth whatever they charge for it, but it's a complete non-starter for me, and so I look elsewhere.
Vert.x actor-ish model is a bit different, but it's not the that different, and considering that Vert.x tends to perform extremely well in benchmarks, it doesn't really feel like I'm losing a lot by using it instead of Akka, particularly since I'm not using Akka Streams.
[1] Normal disclaimer: I don't hide my employment history, and it's not hard to find, but I politely ask that you do not post it here.