Slicing Beef or whichever meat for jerky. Do it when its frozen. Makes your life so much easier. Yes, even if you have a slicer, its easier when its frozen for consistent cuts. Bit chilly on the hands, but so much easier.
Marinate in whatever, but with salts! Lots of salt otherwise won't last. VERY KEY HERE AS WELL> Marinade for at least a day. If marinade flavor is too strong for you, dilute it with water/vinegar etc. High salt content will kill most of the bacteria. Some "jerky recipes"(garbage recipes) say to marinade for a couple hours at most. This is wrong. It will not kill the bacteria and your meat will go RANCID!
Cut all fat off otherwise your jerky will mildew/go rancid
When Jerky is drying dab/dry off all raised oils/fats from said meat otherwise will mildew and mold/rancid.
Jerky is good for years. Won't taste good, but if it is actually dried, will be good for YEARS without putting it in anything other than a fairly dry environment.
Jerky taste for me anyways is "good" for about 3 months and then it goes downhill.
Nearly anything and everything can be dried and reconstituted in water.