I have been at my current position for ~1.5 years as a developer. This is my first full time position after finishing school, and I have worked with 2 other developers on a multitude of projects during my time so far.
One of those developers (let's call him Bob) has been at his current position for ~3 years. He was the first developer at the company as well as built many of the "first" projects that are still running. At this point in time he has been as developer for 10+ years, but he is leaving for a new position in a few weeks.
The other developer has also departed, so I am soon going to be the only developer left.
My question is - Being someone who is generally new to this line of work (compared to my peers) how can I best prepare for being the only developer? (I'm thinking inheriting code written a few years ago, and not having 5x the amount of experience to off set the lack of help)