You are going to shape her digestive track. The first solids you offer will determine which gut species she will have and it is in your hand to try to limit inflammatory species. What will be key, is not the way the food reaches the mouth (spoon vs finger) but what food it is.
BLW seems to have lost its purpose to become a battle between spoon and finger. At its origin, BLW was to leave to the child the control of its feeding, allowing it to eat more or less, so the parent's role was to offer food and then step back l. On MN it has turned into a finger food vs blended food. Both can be whole food, and both can be super crappy food.
This two camps on what is best seem to have forgotten that quality of food is what is more important. Some BLW parents have great diet and will expose their child to a vast number of plants, some have a limited and repetitive diet and their child will only taste a small number of vegetables.
In your case, you need to consider the role of the microbiome, which starts in the mouth. The bacteria in the oral cavity play a huge role. Nothing precludes you from offering a whole well cooked asparagus whilst you prepare the soup/stew/puree so your DD can suck on the soft tip. She will be unable to break the hard stem. The same with a whole cooked broccoli floret. Give her one and she can again such or play with it, whilst you chop another in a small minestrone soup.
Her gut is ready to digest food. You shouldn't worry about this. You can offer soups or puree as first taste, but make sure the puree is liquid enough - just keep a bit of the cooking water when you cook the veggies in 3 cm of water in a pot - because she needs to learn to move her tongue to move the food towards the throat. Don't overload the spoon. At first just have half of it, just dip it in the food and let her taste. This will stimulate the salivary glands to produce saliva which will then lubricate the food and make it easier to swallow.
Stay away from the baby food aisle in the supermarket and focus on the fresh produce, so the vegetables and fruits, and then the whole grains, and later whole fish, frozen is fine but not processed such as fish fingers or other preparation, chicken again the real stuff, not the nugget.
You have 1 month to read a bit. Prepare her as much as you prepare yourself. Have her next to you when you prepare your dinner. Let her watch you chop veggies, look inside the fridge, smell what is cooking in the pan, and of course observe you sitting down at a table with your plate . She might get curious and try to reach, which is fine, and if what you have prepared is appropriate - no salt - she can have the tiniest possible piece on a baby fork.
It will be fine, and most importantly , it will be fun!!