Andres S<p><span class="h-card" translate="no"><a href="https://mastodon.neilzone.co.uk/@neil" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>neil</span></a></span> <span class="h-card" translate="no"><a href="https://fosstodon.org/@postmarketOS" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>postmarketOS</span></a></span> "As an aside, I’m not sure if there is a way of locking the bootloader again afterwards, for security."</p><p>I'm not sure if you're asking about in theory or in practice, but at least in theory - yes. DivestOS supported locking the bootloader on a <a href="https://social.ridetrans.it/tags/Oneplus6" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Oneplus6</span></a> despite being a custom rom. I haven't heard of anyone managing to do it with pmOS, though.</p>