## Preface to conda install with miniforge installer My previous instructions to install `mamba` on top of an existing conda base environment were potentially corrupting the base env because it would be mixing packages from the `defaults` and the `conda-forge` channel, my apologies! For a clean start, I recommend to remove Anaconda Navigator by following these instructions (note the OS choice!): https://docs.anaconda.com/free/anaconda/install/uninstall/#:~:text=Search%20for%20%E2%80%9CControl%20Panel%E2%80%9D%20in,Click%20Uninstall. Then get a miniforge installer: * https://github.com/conda-forge/miniforge?tab=readme-ov-file#miniforge3 * Mac folks: If you have M1/M2/M3 CPU, you need to pick the "ARM64 (Apple Silikon)" version! Now, your base env HAS already mamba and should point to `conda-forge` as a default. Here's a way to check that: * `conda config --show channels` This command should list either ONLY `conda-forge`, or at least `conda-forge` at the top, indicating the preference. Now, back to creating a new environment for every day work * I hope this `intermezzo` has proven to you that it's worth leaving the base environment alone and always work in an extra everyday environment that you just can delete and re-install without any repercussions to your conda install. * `mamba create -n py311 python=3.11` * py311 is your free choice of the environment name. * Sometimes I create an environment specifically just for one tool, then I give it the name of the tool, e.g. pytorch * conda activate py311 * `(py311) mamba install gdal jupyterlab matplotlib pandas` * This should get you almost everything you need to start working * The `(py311)` shows you (in most terminals) that now the py311 environment is active, very useful! * Now, e.g. you can start a jupyterlab server like so: * `cd` to a folder where you will be storing jupyter notebooks, the files with your code and text * e.g.: `cd Jupyter_notebooks` * and then: * `jupyter lab` * This should open a web browser * Now time to read Jupyter (lab) tutorials! :-)