I love this flow! Such a powerful and clean way to solve text issues.

    # This will remove Windows double-spaced empty lines from your copy/paste buffer
    alias winlines="sed '/^$/{$!{N;s/\n//;};}'"
    
    # pbw = [P]aste [B]uffer to fix [W]indows line endings
    alias pbw="pbpaste | winlines | pbcopy"

Also - if you want `pbpaste` and `pbcopy` on Linux...

    # imitate MacOS's paste buffer copy/paste:
    alias pbcopy='xsel --clipboard --input'
    alias pbpaste='xsel --clipboard --output'