It works fine until the yarn setup which failed with this error:
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! ghost-admin@2.31.0 build: ember build
npm ERR! Exit status 1
npm ERR! Failed at the ghost-admin@2.31.0 build script.
Warning: Command failed: npm run build
ENOENT: no such file or directory, open ‘symbols-loader.html’
Warning: Failed running “grunt shell:ember:dev” in “core/client”. Use --force to continue.
Ah I see, interesting. Is this a personal preference? If so then you could use a browser extension to add user styles specifically for when you’re using the Ghost admin. There’s a related thread about doing just that:
I could use that for the colors. As for the changes on Posts page, there are a little more tricky (I guess). I’d like to change the length of each post snippet and show each post image.
I might also make further changes in the future, so installing from source would be the best way.
In that case can I ask if you’ve got everything setup as shown in the Prerequisites section? Looking at the errors you’re getting it appears you might not have npm / node setup right Ghost Docs
So, I went back and tried again to have a better look at the error. And it was coming from ember-svg-jar.
A good sir solved my problem with his github issue here.