For 20 users you should not need more than 2GB of RAM, see <a href="https:&#x2F;&#x2F;gitlab.com&#x2F;gitlab-org&#x2F;gitlab-ce&#x2F;blob&#x2F;master&#x2F;doc&#x2F;install&#x2F;requirements.md#memory" rel="nofollow">https:&#x2F;&#x2F;gitlab.com&#x2F;gitlab-org&#x2F;gitlab-ce&#x2F;blob&#x2F;master&#x2F;doc&#x2F;inst...</a><p>Please ensure you&#x27;ve installed the Omnibus package that helps manage memory.