Aiding the Kuffaar army

Assalamualaikum warehmatullahi wabarakatuhu, I am currently residing in Canada and work as a Software Engineer. I was recently approached by a group of individuals who asked me to venture with them for a startup. The core product for the start-up is a software that helps healthcare authorities in identifying the right type and location of a hospital based on the patient condition for scenarios where there are casualties or injuries and even illnesses such as Covid-19. Recently, the co-founders of the startup told me that they are thinking to pitch the product to the Canadian armed forces with some customization required from me such as change in data inputs which would aid the army to transfer injured soldiers to appropriate healthcare facility during war. I am worried now that I might end up helping the kuffaar and that my earning will also be haraam. My two main concerns are as followed: 1. Will I be considered as aiding the kuffaar army if I build such a software keeping in mind that the same core software (without the customization for the army) can be used to aid civilians as well?  2. Will my earning from developing such a software be considered haraam?  Looking forward to your response on this, Mufti sahab. JazakAllah khair.