What "feels right" to me is to redefine 'package-description' in (guix
package) to return an stexi output by default with optional #:plain-text
#:l10n keys And that each interface handle other ways of displaying
description by using (stexi->...).  IIUC This would lead to reorganize a
few modules so I prefer asking for advices or other proposals before
digging too far. ;)

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Mathieu Lirzin