A customer left me with an ETRTO406 20-inch HE rim to work with.

↑finished product above
It's a 32-hole single-eyelet rim with black anodizing all the way to the rim side,
but it appears to be exclusively for disc brake use (reason explained below).
For a quick-release rear disc hub with 135mm over-locknut dimension,
the requirement was something black, affordable, and relatively good quality,
so I went with a Deore rear hub.

FH-M615 hub 32-hole, black, full competition 46-cross JIS pattern, no rim tape.
I wove the final crossing. This is a 20-inch rim, but
from around 16-inch sizes, depending on the spoke count, there are cases where it's better not to weave the final crossing.

46-cross is right-handed drop-off... when doing Italian pattern.

This time it's JIS pattern, so it becomes left-handed drop-off.
My hands remember the other way, so I sometimes make mistakes.

As for the rim side, there's a taper that narrows toward the outer circumference,
so it's not compatible with rim brakes.

↑finished product above
It's a 32-hole single-eyelet rim with black anodizing all the way to the rim side,
but it appears to be exclusively for disc brake use (reason explained below).
For a quick-release rear disc hub with 135mm over-locknut dimension,
the requirement was something black, affordable, and relatively good quality,
so I went with a Deore rear hub.

FH-M615 hub 32-hole, black, full competition 46-cross JIS pattern, no rim tape.
I wove the final crossing. This is a 20-inch rim, but
from around 16-inch sizes, depending on the spoke count, there are cases where it's better not to weave the final crossing.

46-cross is right-handed drop-off... when doing Italian pattern.

This time it's JIS pattern, so it becomes left-handed drop-off.
My hands remember the other way, so I sometimes make mistakes.

As for the rim side, there's a taper that narrows toward the outer circumference,
so it's not compatible with rim brakes.