I make a Swiss type Bündnerfleisch/Viande Séchée this way: using fillet of beef (for tenderness) or a piece of shoulder, bury it in a crock of pure salt crystals and add a little saltpetre. The SP is to keep the meat red. You can also put in herbs, pepper and/or spices at this point, though they're not always used. Keep in a covered crock in a very cool place or fridge for at least 7days to 4 weeks, depending on the size of the piece, turning twice a day as the brine develops, making sure that the brine covers the meat. I mostly brine for 10 days to 2 weeks for a 3lb piece; I can tell when it's done when the outside layer has hardened, but still gives a little when pressed.
Take out of crock, wash the meat and press the shape between your hands to get rid of some more moisture, but keep the shape neat. Wipe off water/brine and dry thoroughly in a cloth. Wrap in a muslin cloth, hang up so that fresh air circulates freely around it at about 10-12C for at least 10 days. You can dry it to the point where it remains pliable, or dry it until it's hard before eating. I find it cuts thinly with a serrated bread knife.
I find it's best made in late autumn temperatures when I can hang it up beneath our balcony. Most usually, I wrap it in greaseproof paper and put it in the fridge once we've had the first cut, but it can continue to hang outside until it's of the hardness you want. Once it's had it's salt cure and before being wrapped and hung, it can be resoaked in cooled, boiled water and placed back in the fridge for a day to leech out some of the brine. We like it salty, so don't bother with this step. Traditionally, it isn't smoked.
It's done differently in different parts of Switzerland; in some parts of the Valais, for instance, the meat, before drying thoroughly, is squashed into a bread tin type mould, allowed to drain overnight and when the shape is set is then hung up to air dry.
In fact, the basic recipe isn't fundamentally different from that used for cooked salt beef or pastrami, except that the air-drying step is left out in these cases and the beef cooked straight away. Pastrami is pressed; salt beef isn't. I use brisket, though, for salt beef.