Installation stuck

To Reproduce

/home/user# curl -sSL https://dokploy.com/install.sh | sh
Detecting latest stable version from GitHub...
Latest stable version detected: v0.29.4
Installing Dokploy version: v0.29.4
Docker already installed
Using advertise address: 10.0.0.1
Swarm initialized: current node (flpw4wja4si5o8zz77ho6m069) is now a manager.

To add a worker to this swarm, run the following command:

docker swarm join --token SWMTKN-1-3r51mu75b5lssmakulg4rmwamzlf6pkb8yp5cx35nd50swbrhx-4hn0ku2gzn3rvgydk3pn8z2wd 10.0.0.1:2377

To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.
Swarm initialized
m3id035uqs3fpidxchooqu5pg
Network created
vstkb579yvjrvsm5n4xy5sr0z
qody3gfgs0oxb19re8l9yt4qj
Generated secure database credentials and auth secret (stored in Docker Secrets)
za0mjqsb9xkq678jzpe2u6n25
overall progress: 1 out of 1 tasks
1/1: running [==================================================>]
verify: Service za0mjqsb9xkq678jzpe2u6n25 converged
y8x3tadogumfqqf1nyswfocyj
overall progress: 1 out of 1 tasks
1/1: running [==================================================>]
verify: Service y8x3tadogumfqqf1nyswfocyj converged
sh: 270: [[: not found
lui6t3zm7bof9fkt16z1z6ac2
overall progress: 0 out of 1 tasks
overall progress: 0 out of 1 tasks
1/1: starting [============================================> ]

Current vs. Expected behavior

curl -sSL https://dokploy.com/install.sh | sh

Provide environment information

Linux 7029 6.12.57+deb13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.57-1 (2025-11-05) x86_64 GNU/Linux

Which area(s) are affected? (Select all that apply)

Installation

Are you deploying the applications where Dokploy is installed or on a remote server?

Same server where Dokploy is installed

Additional context

No response

Will you send a PR to fix it?

No

Start by fetching https://dokploy.com/install.sh and reproducing the installation on Debian with sh, paying attention to the reported sh: 270: [[: not found message and the Docker Swarm service that remains at 0 of 1 tasks. Inspect the installer around line 270 and the service-startup steps; done means the installation completes without hanging and Dokploy becomes available.