Gettin UB Data Migration to work with Valet Plus

Hi,
For local development we’re using Valet Plus and we would like to have the UB Data Migration Pro module to work on our development environment. Information about Valet Plus can be found here: https://github.com/weprovide/valet-plus
I have added the UB tool nginx configuration to the Valet configuration and the index.php file is working. However the static assets (JS, CSS, etc) are not working. How do I need to configure my Nginx in order to have the static assets show up with Valet Plus as well? 

server {
    listen 80;
    listen 443 ssl http2;
    server_name dollskill.dev.cream.nl www.dollskill.dev.cream.nl *.dollskill.dev.cream.nl;

    root /;
    charset utf-8;
    client_max_body_size 128M;

    location /41c270e4-5535-4daa-b23e-c269744c2f45/ {
        internal;
        alias /;
        try_files $uri $uri/;
    }

    ssl_certificate /Users/dverkade/.valet/Certificates/dollskill.dev.cream.nl.crt;
    ssl_certificate_key /Users/dverkade/.valet/Certificates/dollskill.dev.cream.nl.key;

    location / {
        rewrite ^ /Users/dverkade/.composer/vendor/weprovide/valet-plus/server.php last;
    }

    access_log /Users/dverkade/.valet/Log/nginx-access.log;
    error_log /Users/dverkade/.valet/Log/nginx-error.log;

    error_page 404 /Users/dverkade/.composer/vendor/weprovide/valet-plus/server.php;

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_read_timeout 3600;
        fastcgi_pass unix:/Users/dverkade/.valet/valet.sock;
        fastcgi_index /Users/dverkade/.composer/vendor/weprovide/valet-plus/server.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME /Users/dverkade/.composer/vendor/weprovide/valet-plus/server.php;
        fastcgi_param SERVER_NAME $host;
    }

    location ~ /\.ht {
        deny all;
    }


#START FOR ub-tool APP CONFIG
location /ub-tool/ {
    index  index.html index.php;
    try_files $uri $uri/ /index.php?$args;

    location ~ ^/(protected|framework|themes/\w+/views) {
       deny  all;
    }

    #avoid processing of calls to unexisting static files
    location ~ \.(js|css|png|jpg|gif|swf|ico|pdf|mov|fla|zip|rar)$ {
        try_files $uri =404;
    }

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    location ~ \.php {
        fastcgi_split_path_info  ^(.+\.php)(.*)$;

        #let application catch the calls to unexising PHP files
        set $fsn /ub-tool/index.php;
        if (-f $document_root$fastcgi_script_name){
            set $fsn $fastcgi_script_name;
        }

        fastcgi_pass   unix:/Users/dverkade/.valet/valet.sock;
        #fastcgi_pass   fastcgi_backend
        include fastcgi_params;
        fastcgi_param  SCRIPT_FILENAME  /Users/dverkade/Development/dollskill/pub/ub-tool/index.php;

        #PATH_INFO and PATH_TRANSLATED can be omitted, but RFC 3875 specifies them for CGI
        fastcgi_param  PATH_INFO        $fastcgi_path_info;
        fastcgi_param  PATH_TRANSLATED  /Users/dverkade/Development/dollskill/pub/ub-tool/index.php;
    }

    # prevent nginx from serving dotfiles (.htaccess, .svn, .git, etc.)
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
}
#END FOR ub-tool CONFIG
}