Inkscape with pixel precision - any tips?

Question

block diagram

I sometimes have to make simple diagrams for display on the screen. Inkscape helps a lot. The question arises like this.
If you draw "anyhow", there will be a lot of anti-aliasing.
1. Are there any tips to ensure that our drawing accurately hits the pixels and this anti-aliasing is smaller?
2. Is it possible to somehow set the gamma of the monitor in Inkscape during the final rendering to PNG? At the moment, a black horizontal 1-pixel line and the same, but oblique, have different “weights”.

Answer 1

• use units in pixels
  
• draw on pixel grid
  
• do not export to png
  
• open the svg file in a browser or viewer that supports this format