A bastardized version is what I've used to lose about 145 pounds (~65kg) since October, 2019. I say bastardized because a lot of the keto resources I looked at had guidelines and restrictions that I felt were superfluous to the weight loss, though they might be beneficial in some other way. For example, I saw some suggestions that only grass fed meat counted as keto, or that diet soda wasn't keto. Maybe not, but I didn't give a shit. Net carbs are net carbs whether they come from processed foods or not. It might be a decent suggestion, but irrelevant to the weight loss which was my goal for getting on the diet. I did avoid sugar alcohols and things like sugar-free candies and sweets, though.
My basic version was: <20g net carbs per day. For those few carbs, I tried to use them on greens and veggies. Broccoli, asparagus, salads, spinach, chard and collard greens, etc. Some nuts as well. I did that religiously until about September, 2020 when I started taking weekends off the diet. I also exercised like a mofo. First at the gym, and then after they got closed because of the virus, I started running/walking. Lately, I've mixed in some body weight exercises for strength training. Pushups, planks, leg lifts and an crunches, etc. It all helps, and I think it's been extremely beneficial for my mental heath as well.
Like
@CoffeeAndBourbon said, this is really the only type of diet I've had success with. I think because it includes a lot of fat, it kept me from ever feeling too hungry.
Good luck!