[plt-scheme] PLaneT $HOME installation

Hello,

Is it possible to install .plt packages on a machine with no root
access? I could get successful till this,

% TMPDIR=/tmp PLTPLANETDIR=~/p planet -i jaymccarthy sql-oo.plt 2 0
copy-file: cannot open destination file; cannot copy:
/usr/local/lib/plt/collects/launcher/sh to: /usr/local/bin/schemeunit
setup-plt: Error during Launcher Setup for schemeunit
(/home/private/p/360/cache/schematics/schemeunit.plt/1/2)
setup-plt:   copy-file: cannot open destination file; cannot copy:
/usr/local/lib/plt/collects/launcher/sh to: /usr/local/bin/schemeunit
%

Apparently there is not any "--prefix" kind of option for `planet.'

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