Keep it simple software should be open source. Government software often has similar demands as other countries. Share and reuse.

Reusing good modules and software will make the software work.

Kiss engineering still works keep it simple stupid. Make it as simple as possible. Simple software and systems are easy to maintain and understand.

Use modules as these can be swapped out.

Use proven boring technology such as SQL and JSON. Boring tech has been tried by others and generally works well.