Add more info on how to configure TrackMate Conda path.

Author: tinevez

_pages/plugins/trackmate/trackmate-conda-path.md

@@ -38,5 +38,109 @@ Once you click OK, and if the parameters are correct, the log should output the
 
 If this is correct, you can **relaunch Fiji for the new settings to be used**.
 
+## How to find the right path and values on your system 
 
+In a terminal (where conda is runnable), run the following
+```sh
+conda info
+```
 
+
+#### 1. Conda Executable Location
+
+
+**How to find `{base_env}`**:
+Look for the **`base environment`** line in `conda info` output.
+Example:
+```
+base environment : /Users/username/mambaforge  (writable)
+```
+→ `{base_env} = /Users/username/mambaforge`.
+
+
+
+Examples:
+
+| **OS**       | **Path Format**                          | **Example**                             |
+|--------------|-----------------------------------------|------------------------------------------|
+| **Windows**  | `{base_env}\Scripts\conda.exe`         | `C:\ProgramData\miniconda3\Scripts\conda.exe` |
+| **macOS/Linux** | `{base_env}/bin/conda`               | `/Users/username/mambaforge/bin/conda`    |
+
+
+#### 2. `CONDA_ROOT_PREFIX`
+
+This is **always the `base environment` path** from `conda info`.
+Look for:
+```
+base environment : <PATH>  # <-- This is CONDA_ROOT_PREFIX
+```
+
+**Examples**:
+- Windows: `C:\ProgramData\miniconda3`
+- macOS/Linux: `/Users/username/mambaforge` or `/home/username/anaconda3`
+
+
+
+### Quick Reference Table
+
+| **Field**               | **Where to Look in `conda info`**       | **Example (Windows)**       | **Example (macOS/Linux)**      |
+|-------------------------|----------------------------------------|-----------------------------|--------------------------------|
+| **Conda Executable**    | `{base_env}/Scripts/conda.exe` or `{base_env}/bin/conda` | `C:\ProgramData\miniconda3\Scripts\conda.exe` | `/Users/username/mambaforge/bin/conda` |
+| **`CONDA_ROOT_PREFIX`** | `base environment : <PATH>`           | `C:\ProgramData\miniconda3` | `/Users/username/mambaforge`   |
+
+---
+
+### **Platform-Specific Notes**
+
+- **Windows**:
+  - Use backslashes (`\`) and `.exe` (e.g., `Scripts\conda.exe`).
+  - System-wide installs are often in `C:\ProgramData\`.
+  - User installs are in `C:\Users\<username>\`.
+
+- **macOS/Linux**:
+  - Use forward slashes (`/`) and no `.exe` (e.g., `bin/conda`).
+  - User installs are typically in `/Users/<username>/` or `/home/<username>/`.
+  - System installs may be in `/opt/`.
+
+- **Read-Only vs. Writable**:
+  - If `conda info` shows `(read only)`, the installation is system-wide (requires admin rights).
+  - If `(writable)`, it’s user-specific.
+
+### Example
+
+
+For instance on my system this yields:
+
+```sh
+❯ conda info
+
+     active environment : base
+    active env location : /Users/tinevez/mambaforge
+            shell level : 1
+       user config file : /Users/tinevez/.condarc
+ populated config files : /Users/tinevez/mambaforge/.condarc
+          conda version : 23.1.0
+    conda-build version : not installed
+         python version : 3.10.10.final.0
+       virtual packages : __archspec=1=arm64
+                          __osx=15.7.1=0
+                          __unix=0=0
+       base environment : /Users/tinevez/mambaforge  (writable)
+      conda av data dir : /Users/tinevez/mambaforge/etc/conda
+  conda av metadata url : None
+           channel URLs : https://conda.anaconda.org/conda-forge/osx-arm64
+                          https://conda.anaconda.org/conda-forge/noarch
+          package cache : /Users/tinevez/mambaforge/pkgs
+                          /Users/tinevez/.conda/pkgs
+       envs directories : /Users/tinevez/mambaforge/envs
+                          /Users/tinevez/.conda/envs
+               platform : osx-arm64
+             user-agent : conda/23.1.0 requests/2.28.2 CPython/3.10.10 Darwin/24.6.0 OSX/15.7.1
+                UID:GID : 503:20
+             netrc file : None
+           offline mode : False
+```
+
+And with this I put this in TrackMate conda config:
+
+{% include img src="/media/plugins/trackmate/trackmate-configure-conda-03.png"  %}