An in-house team buys you the deepest product knowledge. The developers internalise the business domain over time, and that knowledge sits in the building. The cost is slow hiring and fixed overhead: hiring well is slow, onboarding takes several more weeks, software maintenance and support services microservices vs monolith the cost continues regardless of workload.
Handing a project to a vendor implies an external team owns the outcome: the provider staffs the roles, they manage the plan, and they carry the risk of missing the date. This works well when the work is a defined project and there is someone who can make decisions quickly. It works badly when the requirements change weekly, as the provider is not able to guess what the business wants.
Hiring individual contractors is the middle option: you add engineers while keeping the planning and the management yourself. It moves quickly — a suitable engineer is often available far sooner than a new hire — and it scales down as easily as it scales up. The condition remains that your engineering managers need the bandwidth to manage them. If that capacity is missing, you end up paying for hours, not results.
Most of the time, companies blend them. A frequent arrangement puts the architecture and the core domain inside the blockchain development company, while a partner handles discrete features, migrations or mobile clients. The line holds: retain what defines your product, and delegate the well-trodden work.
A few questions usually settle it. To begin with: is what you are building a core competitive asset, or a supporting tool? Next: for how long does the work continue — a quarter or a decade? Last: who answers the phone at two in the morning when it breaks? Answer those honestly and laravel inertia vs livewire the model is normally clear.