@datatitian I'd highly recommend doing some research on federated search before you start.
It's extremely difficult to implement, and even if you do very well, performance is terrible and search results are bad.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.