Can we use blynk legecy local server for production

Can we use blynk legecy local server and app for production

Do you mean for commercial purposes?

Pete.

Yes sir for commercial purposes

No, if you want to use Blynk for commercial purposes then you need to take-out a paid subscription. The only paid subscriptions available now are for Blynk IoT.
If you need a local (on-premise) IoT server then you need to to for the White Label subscription and negotiate the additional on-premise cost with the Blynk team.

Pete.

Any way to purchase and use old blynk local server. I mean if cloud is shutting down then use old blynk local server to continue the projects for everyone.