ASK HN: Which intranet portal solution?

Must:

- 300 Users

- Pages

- Document management

- LDAP Integration

- free or non-profit license

- Linux self-hosted

Nice to have:

- Modern look

- Fast

- Markdown editing

- Java portals

- Good community

Already tested solutions:

- Liferay => slow, hard for maintaining, writing plug-ins is complicated

- Exo platform => bad documentation, small community