Are you using scripts from other sources or you've written everything from scratch?

Mostly from scratch

What are the incentives to people run a node?

At the moment nothing, but later on that would HBD from transaction fees / staked HBD interest

I mean, Blockchain was written in C, smart contracts in C is hardest than in JavaScript, C++ have a bigger learning curve. Not even saying that performance it's bigger and memory control much better, which would mean lowest specifications for nodes. Anyone on team have C++ skills?

The language choice does affect development. It's a lot faster to write JS code by far. Another big difference for us is there are 10x more web3 libraries in JS than C. IPFS related libs, VMs, API libs, etc. All of it makes development time a lot less. I can understand C for the most part, but I haven't worked with it directly for a long time.

This means that if 2nd proposal is not funded there are changes of not be concluded? Or you pretend to finish no matter what?

The goal is to release the testnet which will provide the barebones functions of what VSC aims to do. It will be online and operational for anyone to deploy on and start using to build applications on. However, that testnet might not have everything DAPPs want, and for sure won't have every we ultimately want to build, but it will definitely provide the basic functions of smart contracts.