How to get a Laos visa from Hanoi and which land border crossing doesn't require an e-visa?

Entering Malaysia on an e-visa with plans to continue by bus to Laos caused no issues — immigration accepted the onward travel explanation without problems.

On bus crossings (e.g. Cambodia–Vietnam), passengers disembark, go through passport control to get stamps or visas, then reboard. Customs declarations can slow things down, and there is a real risk the bus may leave without passengers who take too long.

Not all Vietnam–Laos land border crossings allow entry without a pre-arranged e-visa. Before booking a sleeper bus from Hanoi to Laos, confirm which specific border checkpoint the route uses and check visa requirements for that crossing. Laos visas can be obtained in Hanoi.