Building and flashing variants for Esp8266-non-os-sdk framework

Hi guys

I’ve a couple of question related to framework Esp8266-non-os-sdk.

When I build the binary does it include the Espressif bootloader?

How can I build and flash binaries when using OTA ?

In this situation Espressif require using a boot loader starting at 0x00000 and two different binaries (usually named user1.bin or user2.bin) to be downloaded at 0x01000 and 0x01000 + offset (according to flash size).

Thanks for your time.

Is this question just trivial cause I am missing some obvious point ?

or

Did I expressed myself so badly it looks like elfic runes ?

Please advice