GlobeIn
Tinkersynth
ArtSnacks
UnitedMasters
Easle
Taggroo
Artrvl
Artisfy
Manuskript
Scrivener
yWriter
StoryMill
bibisco
Novelize
BlankPage
oStorybook
GlobeIn ManuskriptManuskript might be a bit more popular than GlobeIn. We know about 1 link to it since March 2021 and only 1 link to GlobeIn. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
It was included in a subscription box several years ago, from here: https://globein.com. Source: almost 3 years ago
Looks like you want something that integrates well with your workflow. The closest to your description seems to be Manuskript although I haven't used it. But your requirement of "keeping notes and frameworks and linking back and forth" should be possible by stitching together existing Linux tools using a syntax like markdown or asciidoc so that you can use any text editor to write your story and use external tools... Source: almost 3 years ago
Tinkersynth - Create and purchase unique generative art
Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
ArtSnacks - Birchbox for unique, high-quality art supplies
yWriter - Free writing software designed by the author of the Hal Spacejock and Hal Junior series. yWriter6 helps you write a book by organising chapters, scenes, characters and locations in an easy-to-use interface.
UnitedMasters - Creator tools for artists to get smart, get fans, get paid
StoryMill - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless and many more. Based in MN.