Author has written 9 stories for Harry Potter, Discworld, Stargate: SG-1, Once Upon a Time, and Mama.
(Dear God, it sounds like an Alcoholics Anonymous introduction.)
I am a fantasy and sci-fi geek.
(I hope that better geeks would agree that I meet the requirements to deserve the title of geek.)
Harry Potter series is just perfect for fanfiction. I find it well-written and a good read, but with lot of inconsistencies, and it gives lot of openings to build your own version of Harry Potter universe or to make a crossover.
My first story, "Harry Potter, our Lord" was started as a project of writing a huge crossover, but still making it a well-written story. That is why I needed to make a pause at the place where I did so that I would avoid messing it up. (It was already a very convoluted story.)
Then, I have started "the Garden" with the idea of making a less ambitious crossover.
However, at that moment I was also thinking about some inconsistencies in the books and some inconsistencies about how the fanfiction community perceives Harry Potter and other characters.
For example, there are stories where people put "SuperHarry" of "PowerfulHarry" to emphasise that their version of Harry Potter is really magically and/or mentally strong as opposed to "CanonHarry" or something along those lines.
Also, I have noticed how much I was marked by the performancee of Fiona Shaw and Richard Griffiths in the movies. When I have read the book after seeing the first movie, I was having in my mind this picture of a woman in her late forties. Then, J.K. Rowling gave precision that Lily Potter was born in 1960 (which made her 21 at the moment of her death), and if Petunia is one or three years older (I don't think that a 15-16 year old girl would have any reason to be jealous of her 11 year old sister - even for having magic) it would make her 22-24 at the start of the book and she could actually be a very beautiful and attractive woman.
Which is roughly how I have ended where I am now, writing "the Radar" story.
I started a new story, "Supreme Being" with several ideas. I wanted to try similar plot to that of "Guardian" by Blueowl, and also do the idea I used before, that CanonHarry is not necessarily weak (magically or physically) as he grows or when he arrives at Hogwarts. I also wanted to do the story where it is clear how misguided was Dumbledore to think that Muggle-world was less dangerous than Wizard-world.