Johansson grew up in Blekinge but never lived in Svängsta, though her mother worked at Haldafabriken, and she once summer-jobbed in a building that later became a restaurant. According to SVT Blekingenytt, Johansson described receiving many stories from her mother and her mother's work colleagues, which she mixes up and invents upon in her writing. Haldafabriken, located north of Karlshamn, started as a pocket watch factory in 1887 before expanding production to include typewriters, telephones, and taximeters, with a transition from mechanical to electronic typewriters in the 1970s.
The novel Rotsaker, whose exact publication date and length remain unspecified, focuses on themes of rooting among things and being rooted in place. According to SVT Blekingenytt, Johansson described it as featuring a character named Harriet who stays in Svängsta and includes a recipe for root mash, though other themes or plots, as well as critical reception and adaptation plans, are not yet known. Johansson emphasized that while everything she writes is filtered through herself, it is not an autobiography.
Everything one writes is filtered through oneself, but it is not an autobiography. I have received many stories from my mother and her work colleagues, but I mix them all up a lot and also invent a lot.
Partly it is someone rooting among various things. It is also about someone being rooted here in the place. Just Harriet who it is about stays in Svängsta. But then there is actually also a recipe for root mash.