Impossibile installare il plugin: non succede nulla

Ciao a tutti, sto cercando di installare il plugin discourse-alt-logo (https://meta.discourse.org/t/alternative-logos-for-dark-light-themes/88502), ma sto fallendo miseramente.
Ho già installato con successo diversi altri plugin nel mio sistema; ecco com’è fatto il mio file app.yml:

hooks:
  after_code:
    - exec:
        cd: $home/plugins
        cmd:
          - sudo -E -u discourse git clone https://github.com/discourse/docker_manager.git
          - git clone https://github.com/discourse/discourse-voting.git
          - git clone https://github.com/discourse/discourse-solved.git
          - git clone https://github.com/discourse/discourse-canned-replies.git
          - git clone https://github.com/discourse/discourse-alt-logo.git

(Nota che la discussione sull’installazione dei plugin Install plugins on a self-hosted site è stata recentemente aggiornata con un prefisso "sudo -E -u discourse" prima del comando git clone. Non è chiaro però se le righe rimanenti debbano avere anche loro sudo. Ho provato tutte le combinazioni: tutto con sudo, tutto senza sudo, solo la prima con sudo, ecc. Qual è quella corretta?).

Ecco una parte del log di rebuild:

I, [2020-06-23T14:26:42.313875 #1]  INFO -- : > cd /var/www/discourse/plugins && sudo -E -u discourse git clone https://github.com/discourse/docker_manager.git
Cloning into 'docker_manager'...
warning: unable to access '/root/.config/git/attributes': Permission denied
I, [2020-06-23T14:26:43.128902 #1]  INFO -- : 
I, [2020-06-23T14:26:43.129404 #1]  INFO -- : > cd /var/www/discourse/plugins && git clone https://github.com/discourse/discourse-voting.git
Cloning into 'discourse-voting'...
I, [2020-06-23T14:26:43.499587 #1]  INFO -- : 
I, [2020-06-23T14:26:43.500165 #1]  INFO -- : > cd /var/www/discourse/plugins && git clone https://github.com/discourse/discourse-solved.git
Cloning into 'discourse-solved'...
I, [2020-06-23T14:26:43.860313 #1]  INFO -- : 
I, [2020-06-23T14:26:43.860856 #1]  INFO -- : > cd /var/www/discourse/plugins && git clone https://github.com/discourse/discourse-canned-replies.git
Cloning into 'discourse-canned-replies'...
I, [2020-06-23T14:26:44.243787 #1]  INFO -- : 
I, [2020-06-23T14:26:44.244411 #1]  INFO -- : > cd /var/www/discourse/plugins && git clone https://github.com/discourse/discourse-alt-logo.git
Cloning into 'discourse-alt-logo'...
I, [2020-06-23T14:26:44.531174 #1]  INFO -- : 

Tuttavia, qualsiasi cosa io faccia, il plugin non viene installato, non vengono mostrate opzioni e, quando vado alla sezione Plugin nell’area Amministratore, vengono elencati solo i plugin precedenti come installati:

Qualche idea?

Alt logo is not a plugin, it is a theme. To install themes follow How do I install a Theme or Theme Component?

1 Mi Piace

Silly me. Thanks for pointing out. By the way, what is the correct way to modify the app.yml for plugins? Should I prefix all git clone commands with “sudo”?
Did you see the “permission denied” in the log above? Could you please enlighten me? Thank you very much in advance.