[Groff] still exploring the last version: what is gremlin ?

[Thomas Baruchel]

Brest, le dimanche 1er octobre

after having used an old version of groff for a while, I just downloaded the
last one. I discovered 'grn'. What exactly is the 'gremlin' format ? What is it
good for ? Do I need extra tool to make gremlin files ? I have 'grn' but not
gremlin(1). Where can I download it ? What is the purpose of this program ?

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