The Meaning of Life, the Universe, and Everything.
NetherUtils is a mod which allows you to start in the nether on a small 5x5 platform. So whenever you install the mod, create a world and play it will straight away put you into the nether and force your respawn there.
The mod is small. Just couple of blocks and features, but my plan is to make it in a mod which doesn't require other mods to progress. I'm planning to add machines, biomes, tools and all the stuff you'll need to progress in the nether without the help of other mods.
Currently there are custom trees, custom portals, beds which work in the nether and much more. The mod is in the popular modpack called Forever Stranded Lost Souls, so feel free to test it there.
There's a bug with Sponge which makes you not respawn in the nether after you die, I don't know the cause since it works with forge only so I blame it on sponge. Also if you fill the tank with water it will turn into a water type block, currently if you put lava next to it it will turn itself into obsidian/stone since there's currently no fix for this, there's a PR that I'm waiting for but thats gonna take some time since it hasn't been approved for 6 months already.