It comes from framedtext:

\starttext

\startbuffer
\samplefile{tufte}
\stopbuffer

\framedtext[strut=no]{\typebuffer[option=tex]}

\stoptext

Best,
Jacob

> Am 30.07.2023 um 21:14 schrieb Henning Hraban Ramm <texml@fiee.net>:
> 
> Yet another issue:
> 
> \typebuffer always starts with a blank line.
> Is this a bug, or how can I disable it?
> 
> Hraban
> 
> MWE:
> """
> \starttext
> 
> \startbuffer
> \samplefile{tufte}
> \stopbuffer
> 
> \framedtext{\typebuffer[option=tex]}
> 
> \stoptext
> """
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : https://contextgarden.net
> ___________________________________________________________________________________