  * Build grammars during package build
  * Use alternative Perl grammar when solved why it fails to load
    * source = { git = "https://github.com/tree-sitter-perl/tree-sitter-perl", rev = "release" }
    * (needs `tree-sitter generate` in source before `hx -g build`)
  * fix reference to default logfile in manpage
  * recommend (not suggest) hx-highlight-core when in Debian
