🐛 Error running local development with solution

[da-wilky]

Describe the bug
I try to follow the documentation for the local development (https://hi.events/docs/getting-started/local-development). Doing so results in multiple errors. The first one to approach is the following:

Running composer install in the backend service...
Installing dependencies from lock file (including require-dev)
Verifying lock file contents can be installed on current platform.
Package operations: 184 installs, 0 updates, 0 removals

In Filesystem.php line 261:

/var/www/html/vendor does not exist and could not be created:

install [--prefer-source] [--prefer-dist] [--prefer-install PREFER-INSTALL] [--dry-run] [--download-only] [--dev] [--no-suggest] [--no-dev] [--no-autoloader] [--no-progress] [--no-install] [--audit] [--audit-format AUDIT-FORMAT] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--apcu-autoloader-prefix APCU-AUTOLOADER-PREFIX] [--ignore-platform-req IGNORE-PLATFORM-REQ] [--ignore-platform-reqs] [--] [<packages>...]

Composer install failed within the backend service.

To Reproduce
Steps to reproduce the behavior:

1. Follow the first two steps of the linked documentation. (https://hi.events/docs/getting-started/local-development)
2. Running the start-dev.sh script results in the error above.

Expected behavior
The development environment should be setup successfully.

Hi.Events Version and platform
Im on the v1.3.0-beta.1 branch.

System
I am trying this on NixOS 25.05.

Solution
It seems to be an error with the permissions of the cloned repo. When I change the owner of all files from that repo to 82, this script runs successfully. My system doesnt have the www-data user.
The documentation should maybe get extended to include this information about setting the new owner of all files of that repo, or the start-dev.sh should be adjusted so it successfully runs even with other owners of those files.