I tried typing out the flag for you, but our Astronaut Coleson seems to have changed the terminal's keyboard layout? He went out to get a big mak so I guess we're screwed. Whatever, here's the flag, if you can somehow get it back to normal.
rlk{blpdfp_iajylg_iyi}
The name BigMak
is similar to Colemak, so the flag is QWERTY typed into Colemak. So we just find the mapping for each character:
rlk{blpdfp_iajylg_iyi}
->
sun{burger_layout_lol}
Flag: sun{burger_layout_lol}
.