developer is officially maintaining the package.
The rationale for changing this from "tech-pkg" to "pkgsrc-users" is
that it implies that any user can try to maintain the package (by
submitting patches to the mailing list). Since the folks most likely
to care about the package are the folks that want to use it or are
already using it, this would leverage the energy of users who aren't
developers.
It is more consistent with the tex.buildlink3.mk name. Also, if a package
really needs latex, it just has to set TEX_ACCEPTED to latex distributions
altough today, all TEX_ACCEPTED possibilities are latex distributions
LaTeX can be used to typeset many kinds of different documents, but
typesetting chemical reactions is esthetically not very pleasing because
LaTeX's own arrows \rightarrow, \leftarrow and \rightleftharpoons which
you might use for this purpose are too short and the arrow heads are not
like the "standard" ones you will find in books or journals on chemistry.
The macro chemarrow.sty in conjunction with the font arrow.mf is supposed
to make the typesetting of chemical reaction schemes in LaTeX easier and
especially nicer looking.
