The original post is about a boards package to use to burn to an ATTINY 85. "ScratchMonkey"
Backtracking to that package shows it to be quite old and un-maintained by the publisher of that package.
I use the 85 myself in some projects but mostly they don't need the 6th pin.
However in setting up for the 85's I did find a few different boards packages to flash the chip but always picked ones I saw were maintained by the publisher.
As a result I have a good selection (probably too many)
I use the DIP 85's with a home made programmer type shield for a UNO.
Same approach is also viable with a NANO.
On UNTOUCHED 85's you should still burn the fuses FIRST which will also determine a few characteristics of its eventual use.
They almost all need a bootloader of some type and its in that aspect you get the smaller packages and 6th pin use "NO RESET" leaving PIN 1 available to you.
That is termed differently in different packages so you may see it as "no bootloader" or "no usb" or "no safe mode"
It essentially runs the sketch super fast as it doesn't need to do any other tasks first.
There is a very good write up here (some you can ignore) but still worth taking as much in as you can.
Note that they explain setting the fuses as also burning the bootloader which was my initial stumbling block until I read a little more and became familiar with bootloader as being two possible things. One of which was not going to take away memory nor stop the 6th pin being used.
There are plenty of other similar articles and it was worth my time digesting those to pick out a better understanding of the process which always involves sending the "ArduinoISP" sketch to the Arduino itself FIRST before proceeding to burn anything to the 85. BTW "ArduinoISP" is the last EXAMPLE in the IDE examples section.
I do use the 6th pin bootloader method to get my neopixels to fire up quicker on projects and it also lets me use a wider variety of effects.