Here's the list of components included in the misc_giogziro95.lib library file:

• 7405 (alias: 555ЛН2) (6-bit buffer / line driver; inverting)
• 74141 (alias: 155ИД1) (BCD to decimal decoder/driver; active-high outputs)
• AC-DC_power_supply (AC-to-DC power supply)
• AC_power (AC power source; customizable label)
• Arduino_Nano_R3 (Arduino Nano, a programmable single-board microcontroller based on ATmega328)
• Arduino_Uno_R3 (Arduino Uno, a programmable single-board microcontroller based on ATmega328P)
• DC_power (DC power source; customizable label)
• FSR (Force-sensitive resistor)
• HX711_module (24-bit analog-to-digital converter for weigh scales)
• Load_cell (4-wire load cell for weigh scales)
• Wheatstone_bridge (Wheatstone bridge)

To use a library, after you clone the repo using Git (or download and extract the archive):

1. Go to KiCad and load Eeschema.
2. Go to Preferences → Component Libraries.
3. Click Add under Component library files, then locate and and select the desired library file. (Alternatively, you can click another Add under User defined search path and select your project directory and then drop the library file there. This one is convinient when you use multiple libraries and you don't want to deal with adding them individually.)
4. Click OK.
5. Now you can place the components from the library.

If you want to import an individual component into an already existing library instead, you can do the following:

1. Go to KiCad and load the schmatic library editor.
2. Select your working library.
3. On the top toolbar, click the Import component button.
4. Select for the desired component librery file.
5. If you want to, do some final edits, tweaks, customizations, etc.
6. On the top toolbar, click Update current component in current library button.
7. Save the library and confirm your changes.

Happy designing!