# What's the different between rebuild and bootstrap

**URL:** <https://meta.discourse.org/t/whats-the-different-between-rebuild-and-bootstrap/60315>\
**Category:** Self-hosting\
**Created:** [2017年四月2日 10:42 UTC](https://meta.discourse.org/t/whats-the-different-between-rebuild-and-bootstrap/60315 "2017-04-02T10:42:51Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![pfaffman](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pfaffman/32/120154_2.png) [@pfaffman](https://meta.discourse.org/u/pfaffman)\
**Post date:** [2017年四月3日 02:03 UTC](https://meta.discourse.org/t/whats-the-different-between-rebuild-and-bootstrap/60315/6 "2017-04-03T02:03:06Z")

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> [@sam](#):
>
> If you only need to amend env, do a destroy and then start

Oh! That’s news to me. So when `./discourse-setup` is re-run to change email and memory settings, it needs just

```
./launcher destroy app
./launcher start app

```

And only if Let’s Encrypt changes does it need to `./launcher rebuild app`?

Is that right, @sam? If that’s so, @codinghorror, would you like a PR for that?

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