I don't know. At the moment all three governments subscribe to what is an outmoded economic theory. Modern Monetary Theory, a heterodox, macroeconomic theory that describes currency as a public monopoly is the new and current model.
In that theory, a modern democracy is only limited in its money creation and purchases by inflation, which only accelerates once the real resources (labour, capital and natural resources) of the economy are utilized at full employment. Since no modern democracy normally achieves full employment, it can be argued that inflation won't, in fact, increase.
This theory sounds wild, until you realise there's a lot of emerging evidence underpinning it. For example, since 2008 the bank of England has been printing billions, yet inflation is now at its lowest ever level.
The entire global economy has been drop-shocked by Covid, yet inflation still seems very low.
The USA national debt is in the trillions, yet their inflation is low. So it's quite possible the Welsh government could simply write off the debts by putting a line through them. It'll be interesting see how it plays out.