In the wiki/How-to-Install maybe separate MacOS and the BSDs from Linux

[ceptersome123457]

Hello!

As pointed in the headline it may be more straight-forward and less confusing for users of these systems, if it there could be a third category, as:

-there is no venv-package to be installed (MacOS, Open-/DragonFly-/Free-/NetBSD)
-instead on would need: python (and of course py*-pip and py*-virtualenv for it)
-it is then sourced with . venv/bin/activate

Otherwise it's fine, thank you!

[MarkZH]

I don't use MacOS or BSD, so I'm don't understand the needed edits. Copy the markdown below into a reply and edit it to what is correct for these systems.

### Mac/Linux
- **NOTE: Only Python 3.9 or later is supported!**
- Download the repo into lichess-bot directory.
- Navigate to the directory in cmd/Terminal: `cd lichess-bot`.
- Install pip: `apt install python3-pip`.
  - In non-Ubuntu distros, replace `apt` with the correct package manager (`pacman` in Arch, `dnf` in Fedora, `brew` in Mac, etc.), package name, and installation command.
- Install virtualenv: `apt install python3-virtualenv`.
- Setup virtualenv: `apt install python3-venv`.

python3 -m venv venv # If this fails you probably need to add Python3 to your PATH.
virtualenv venv -p python3
source ./venv/bin/activate
python3 -m pip install -r requirements.txt

[ceptersome123457]

Hey MarkZH!

Maybe something like this (missing installation of "pip" under MacOS is no oversight, as brew will provide it with the python-formula):

MacOS (and BSD)

• NOTE: Only Python 3.9 or later is supported!
  For MacOS the use of a package-manager (https://brew.sh/) is recommended.

• Open a Terminal and install the required packages with:
  brew install git python3 virtualenv # Net-/FreeBSD users might want to install: git python311 py311-pip py311-virtualenv

• Download the lichess-bot-repo.
  git clone https://github.com/lichess-bot-devs/lichess-bot

• Navigate into the directory: cd lichess-bot.

• Setup the virtual environment:
  python3 -m venv venv # If this fails you probably need to add Python3 to your PATH.
  virtualenv venv -p python3
. venv/bin/activate
python3 -m pip install -r requirements.txt

• Update lichess-bot anytime later if you want with:
  git pull origin master (while you are in the lichess-bot directory)

[MarkZH]

I've opened a PR (#1083). You can see a preview of the new instructions here. Let me know what you think.

[ceptersome123457]

Seems fine except for:
source ./venv/bin/activate
Leads to nothing and would only made have sense if you've got another shell (GNU Bash) installed (somewhat unlikely).

Instead:
. venv/bin/activate is the correct (under Linux too) command which works out of the box.

If you ommit git clone https://github.com/lichess-bot-devs/lichess-bot etc. (for "Download the repo into lichess-bot directory") then there's no need to keep that reference to git in the packages to be installed.

Thanks.