A riposte, that (repost)

Posix, Unix, Linux, all
passed my way, I dropped the ball,
moving over, (not in the mall)
I dropped into a trunk.

Macs and PCs, machines do crash,
were often ways I made my cash,
my latest venture sometimes a smash,
though sometimes cause a funk.

retail vending in cash flow hell,
(you can't see him? just ring the bell...)
and naysayers call for spendings knell;
they're still buying all the junk.

so when i've lost my sanity
and rumor vine becomes a tree
you'll watch and hear me sing to thee;
"It's really all just bunk!"