We investigate de Sitter solutions of \( \mathcalN=1 \) supergravity with an F-term scalar potential near a no-scale Minkowski point, as they may in particular arise from flux compactifications in string theory. We show that a large class of such solutions has a universal tachyon with \( \eta \le -\frac43 \) at positive vacuum energies, thus forbidding meta-stable de Sitter vacua and slow-roll inflation. The tachyon aligns with the sgoldstino in the Minkowski limit, whereas the sgoldstino itself is generically stable in the de Sitter vacuum due to mass mixing effects. We specify necessary conditions for the superpotential and the Kähler potential to avoid the instability. Our result may also help to explain why the program of classical de Sitter hunting has remained unsuccessful, while constructions involving instantons or non-geometric fluxes have led to various examples of meta-stable de Sitter vacua.
Tachyon Regular Font
Alternatively, you may want to use a system font, which you know will be rendered reliably across languages, operating systems, and browsers. Apéro uses Tachyons to render beautiful system font stacks for your site, making it super simple to configure and blazing fast to load. The default choices are sans-serif or serif, and can be assigned to headings and body text, respectively. Additional options can be found in the Tachyons Font Family Reference. Why use system fonts?
Create a file named custom.scss in the new assets/ folder to define the @font-face CSS rule for each font/weight combination you downloaded. For example, here is a custom.scss that imports the Nanum Myeongjo font. The webfonts helper app will help write your CSS for you (using ../fonts/ to customize the folder prefix correctly by default), like this:
Your final step is to go back to your config.toml file and add the font-family values for the font(s) you want to use to the customtextFontFamily and/or customheadingFontFamily keys. You can combine custom fonts with system fonts too.
Just wondering if you are able to use the entire propeller font including the electronic symbol characters. The st7920 has a graphics mode as well as character mode, if I am not mistaken. It might be some time before I can interface to it, but thanks for posting the code, I will check it out. Feeling guilty for not getting the graphics only lcd.
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