Install problem

[Pilot-hro]

Hello, I need help with Snowboy. If I want to install it, it work at first but later it doesn't work.

1/2 Preparation of dependencies
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
libpython2.7 is already the newest version (2.7.16-2+deb10u3).
The following packages were automatically installed and are no longer required:
libbasicusageenvironment1 libgroupsock8 liblivemedia77 python3-v4l2
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
bzip2 is already the newest version (1.0.8-5+b2).
python-pyaudio is already the newest version (0.2.11-1+b2).
python3-pyaudio is already the newest version (0.2.13-1).
libatlas-base-dev is already the newest version (3.10.3-13+rpi1).
The following packages were automatically installed and are no longer required:
libbasicusageenvironment1 libgroupsock8 liblivemedia77 python3-v4l2
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
--2025-09-12 20:23:11-- https://bootstrap.pypa.io/get-pip.py
Resolving bootstrap.pypa.io (bootstrap.pypa.io)... 151.101.192.175, 151.101.64.175, 151.101.0.175, ...
Connecting to bootstrap.pypa.io (bootstrap.pypa.io)|151.101.192.175|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2148718 (2.0M) [text/x-python]
Saving to: ‘get-pip.py.3’

get-pip.py.3 100%[=========================================================================================================================================>] 2.05M 1.38MB/s in 1.5s

2025-09-12 20:23:13 (1.38 MB/s) - ‘get-pip.py.3’ saved [2148718/2148718]

error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try apt install
python3-xyz, where xyz is the package you are trying to
install.

If you wish to install a non-Debian-packaged Python package,
create a virtual environment using python3 -m venv path/to/venv.
Then use path/to/venv/bin/python and path/to/venv/bin/pip. Make
sure you have python3-full installed.

For more information visit http://rptl.io/venv

note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
hint: See PEP 668 for the detailed specification.