Update book to promote ghci DevelMain.update instead of yesod devel?

[schoettl]

Hi there,

It seems that newcomers keep stumbling upon the yesod devel dev server and that it's slow or shows errors.

• ghc: panic! (the 'impossible' happened) when starting new project yesod#1833 (comment)
• "Application isn't built" when launching yesod devel yesod#1755
• https://stackoverflow.com/a/75990242
• https://www.reddit.com/r/haskell/comments/3d9i9q/why_is_yesod_so_slow/

I just tried the the scaffold and couldn't get yesod devel running on my NixOS whereas stack ghci and DevelMain.update worked.

So my idea is: Should we change parts in the yesod book so that it

• either describes the ghci way instead of yesod devel
• or at least adds notes that the ghci way might be a good / the better alternative?

I'd be also interested if there are devs who really only use yesod devel successfully?

In the book, at least the following pages are mentioning yesod devel:

• https://www.yesodweb.com/book/basics
• https://www.yesodweb.com/page/quickstart
• https://www.yesodweb.com/book/scaffolding-and-the-site-template
• https://www.yesodweb.com/book/web-application-interface
• https://www.yesodweb.com/book/wiki-chat-example

[menelaos]

See also yesodweb/yesod#1860