The Synth module generates physically correct diffraction and diffusion of point lights (such as stars) in your image, based on a virtual telescope model.
Besides correcting and enhancing the appearance of point lights (such as stars), the Synth module may even be 'abused' for aesthetic purposes to endow stars with diffraction spikes where they originally had none.
Any other tools on the market today simply approximate the visual likeness of such star spikes and 'paint' them on. However the Synth module can physically model and emulate most real optical systems and configurations to obtain a desired result.
Thank you StarTools for turning my average photos into amazing ones.
One online tool for BASE64 is Motobit Software's BASE64 encoder/decoder.
A brief tutorial on using Siril via the Sirilic front-end.
And all this is just what Tracking does for the deconvolution module.
Upon opening an image, the Tracking dialog will open, asking you about the characteristics of the data.
You can convert everything you see to a format you find convenient. Give it a try!