• Any::Moose (though there are a bunch of warnings that this should be replaced with Moo)
• Net::Google::DataAPI
• XML::Atom
• and other modules which I've had no problem installing
The last one seems to be my current blocker, as XML::Atom fails to install.

cpan[6]> install XML::Atom
Running install for module 'XML::Atom'
  MIYAGAWA/XML-Atom-0.42.tar.gz
  Has already been unwrapped into directory ~/.cpan/build/XML-Atom-0.4
+2-6
Configuring M/MI/MIYAGAWA/XML-Atom-0.42.tar.gz with Build.PL
Creating new 'Build' script for 'XML-Atom' version '0.42'
  MIYAGAWA/XML-Atom-0.42.tar.gz
  ~/perl5/perlbrew/perls/perl-5.33.4/bin/perl5.33.4 Build.PL -- OK
Running Build for M/MI/MIYAGAWA/XML-Atom-0.42.tar.gz
cp lib/XML/Atom/Link.pm blib/lib/XML/Atom/Link.pm
cp lib/XML/Atom/ErrorHandler.pm blib/lib/XML/Atom/ErrorHandler.pm
cp lib/XML/Atom/Base.pm blib/lib/XML/Atom/Base.pm
cp lib/XML/Atom/Server.pm blib/lib/XML/Atom/Server.pm
cp lib/XML/Atom/Entry.pm blib/lib/XML/Atom/Entry.pm
cp lib/XML/Atom/Category.pm blib/lib/XML/Atom/Category.pm
cp lib/XML/Atom/Thing.pm blib/lib/XML/Atom/Thing.pm
cp lib/XML/Atom/Util.pm blib/lib/XML/Atom/Util.pm
cp lib/XML/Atom.pm blib/lib/XML/Atom.pm
cp lib/XML/Atom/Feed.pm blib/lib/XML/Atom/Feed.pm
cp lib/XML/Atom/Content.pm blib/lib/XML/Atom/Content.pm
cp lib/XML/Atom/Person.pm blib/lib/XML/Atom/Person.pm
cp lib/XML/Atom/Client.pm blib/lib/XML/Atom/Client.pm
  MIYAGAWA/XML-Atom-0.42.tar.gz
  ./Build -- OK
Running Build test for MIYAGAWA/XML-Atom-0.42.tar.gz
t/00-compile.t ................... ok
t/01-util.t ...................... ok
t/02-content.t ................... ok
t/03-link.t ...................... ok
t/04-person.t .................... ok
t/11-entry.t ..................... ok
t/12-feed.t ...................... ok
t/13-atom1.t ..................... ok
t/14-atom1-create.t .............. ok
t/15-content-image.t ............. ok
t/16-content-binary.t ............ ok
t/17-renames.t ................... ok
t/18-unicode.t ................... skipped: Skipping Unicode test sinc
+e it depends on LibXML
t/19-ext.t ....................... ok
t/20-content-xhtml.t ............. ok
t/21-client.t .................... skipped: Don't do live Atom test
t/22-autodiscovery.t ............. skipped: http://diveintomark.org/te
+sts/client/autodiscovery/: 200 OK
t/23-category.t .................. ok
t/24-bad-content.t ............... ok
t/25-utf8-create.t ............... ok
t/27-client-leaks.t .............. ok
t/28-ext.t ....................... ok
t/29-source.t .................... ok
t/30-datetime-stringification.t .. ok
t/31-external-entities-libxml.t .. 1/4
#   Failed test 'resolved entity'
#   at t/31-external-entities-libxml.t line 57.
#                   '<p>No, Ben isn't updating. It's me testing out gu
+est author functionality.</p>'
#     doesn't match '(?^:This is what you get when you do unit testing
+)'
# Looks like you failed 1 test of 4.
t/31-external-entities-libxml.t .. Dubious, test returned 1 (wstat 256
+, 0x100)
Failed 1/4 subtests
t/31-external-entities-xpath.t ... # XPath Override in place
Constant subroutine XML::Atom::LIBXML redefined at t/31-external-entit
+ies-xpath.t line 18.
External Entities disabled. at ~/.cpan/build/XML-Atom-0.42-6/blib/lib/
+XML/Atom.pm line 52.
t/31-external-entities-xpath.t ... ok
t/author-pod-syntax.t ............ skipped: these tests are for testin
+g by the author

Test Summary Report
-------------------
t/31-external-entities-libxml.t (Wstat: 256 Tests: 4 Failed: 1)
  Failed test:  4
  Non-zero exit status: 1
Files=27, Tests=285,  6 wallclock secs ( 0.09 usr  0.05 sys +  4.73 cu
+sr  0.78 csys =  5.65 CPU)
Result: FAIL
  MIYAGAWA/XML-Atom-0.42.tar.gz
  ./Build test -- NOT OK
//hint// to see the cpan-testers results for installing this module, t
+ry:
  reports MIYAGAWA/XML-Atom-0.42.tar.gz
Failed during this command:
 MIYAGAWA/XML-Atom-0.42.tar.gz                : make_test NO

cpan[7]>
[download]

t/18-unicode.t ................... skipped: Skipping Unicode test sinc
+e it depends on LibXML
[download]

cpan[7]> install XML::LibXML
XML::LibXML is up to date (2.0206).
[download]

t/31-external-entities-libxml.t .. 1/4
#   Failed test 'resolved entity'
#   at t/31-external-entities-libxml.t line 57.
#                   '<p>No, Ben isn't updating. It's me testing out gu
+est author functionality.</p>'
#     doesn't match '(?^:This is what you get when you do unit testing
+)'
# Looks like you failed 1 test of 4.
[download]