If anything needs improved, drop a PR on the repo.
Enchanting was added in Minecraft Beta 1.9 Prerelease 3. At this time, experience was hard to come by, only available by killing mobs, and so high-level enchantments were difficult to obtain.
However, enchantments in this early buggy state are still of interest. For example, in Beta 1.9 Prerelease 4 (hereafter stylized b1.9-p4), spawners, lit furnaces, infested stone block types, and smooth stone double slabs could be obtained with a silk touch pickaxe. In fact, the motivation behind this project was originally to find the optimal level for getting silk touch on an iron pickaxe.
The current scope of the project is now much broader: to document the mechanics of enchanting in these early days, to track any changes during the time from b1.9-p3 to 1.0.0, and to provide calculators to assist with any enchanting efforts for these versions.
Coming soon!