This picture:
Looks pretty plausible with the 100k and 100n values which result in a 10ms time constant. (1e5 * 1e-7 = 1e-2).
And here is the project:
2021-09-19_NE555_test.zip (4.8 KB)
I had a look at the NE555.lib file, but it does not have any licensing information. It looks like somebody built it out of 32 transistors (defined in the file) and 12 resistors.
About a year ago I had a burst and found several thousands of models on the 'net and spend hours finding something that worked without too much twiddling. This example is about as far as I’ve ever got in spice. After that I mostly got distracted and have not simulated anyting in KiCad / ngSpice untill I dug up this example from back then.
Maybe you can do more with it.
[Edit]
It seems like the ne555 lib was posted earlier on this forum, in:Simulation of 555 timer circuit in KiCad