Investigate Bun.js

[VakarisZ]

Spike

Investigate and try to move to Bun.js

Objective

Bun.js should give us faster package management, hot reloads and builds

Scope

Some things will have to be refactored, like deployment scripts, but the impact on the codebase should be minimal.

[mssalvatore]

@VakarisZ @ordabach Is this issue still relevant?