MacOS

Setting up your environment

Folk is built on Tcl, so you'll need to install the latest version for 'folk' to work correctly. MacOS has a version of tcl-tk installed by default but you really shouldn't use it because it's riddled with bugs and warnings. Let's get you set up with the latest version of Tcl ^{(as of June 2025)}:

Download the latest tcl-tk from Homebrew:

# In your terminal:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
# and then run this:
brew install tcl-tk

Set your TCL_LIBRARY and TCLLIBPATH variables in your .bashrc, .zshrc, or similar:

# in your .bashrc, .zshrc, etc.:
export PATH="/opt/homebrew/bin:$PATH"
export TCL_LIBRARY="/opt/homebrew/lib/tcl8.6"
export TCLLIBPATH="/opt/homebrew/lib"

Restart your terminal or source you config file, e.g. source .zshrc

Test that you've installed tclsh8.6 correctly on MacOS by running this:

# In your command line run:
echo 'puts $tcl_version;exit 0' | tclsh
9.0
# ↑ Expected output, 9.0 or higher

TODO …