How to share contact from desktop app via QR or invite link?

Mutual Help
1

I’m using Delta Chat Electron desktop 2.10.0.
I have a chat with some user. In ‘View Profile’ menu there is item ‘Share’ (hidden under 3 dots icon), it can send user’s vCard to someone.
But how can I share contact as QR code, or as invite URL in text form?

2

But how can I share contact as QR code, or as invite URL in text form?

create a group with the two persons and share the group’s invite link.

otherwise, as you noted, vCard are the way to go.

some background you cannot share QR codes or invite links on behalf of others; they require secrets to be created for the inviter and and the inviter also to respond to handshake messages. for obvious security and privacy reasons, this can be started by the inviting person only. in case of the group invite link mentioned above, this is routed over your phone, so you're still the inviter doing the handshake
3

Ok. So I can export vCard.

If I can’t send vCard via established DC app contact - how can someone import vCard to DC app, if I transfer it as file by other means?

vCard can be encoded to QR. But my DC desktop only decodes it to text, and allows to copy that text, instead of asking to import it as vCard.