Yes. Boat with Everything is free to download from Modrinth. Its license is LGPL-3.0-only.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

Boat with Everything — Minecraft Mods

From Modrinth

The Boat with Chest is cool, I guess, but I want to put more things in my boat

1.19 added chest boats, but I wanted more. So "Boat with Everything" allows you to put pretty much any block in the game into a boat.

Shift right click on the boat to add the block.
Punch the boat to remove it.
Many blocks (including barrels, chests, ender chests, droppers, dispensers, lecterns, looms, cartography tables, stonecutters, crafting tables, grindstones, smithing tables, flower pots, concrete powder blocks, banners, carpets, sponges, TNT, redstone lamps, note blocks, campfires, doors, trapdoors, fence gates, anvils, and metal storage blocks) have special appearances or behaviors.
Try opening your inventory while riding the boat.
Try shift-right clicking to interact with the block.
Try driving next to a redstone power source.

From source data

Supports 2 Minecraft versions, the newest being 1.19.2.

Runs on Fabric and Quilt.

Rated a light load on a server.

From our catalogue

One-click install: Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side: Required on the server
Server type needed: Fabric, Quilt
Server load: light
Smallest plan we suggest: Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build: 1.1.0-fabric-1.18.2 (beta), released 2022-09-16

Loader	Game versions	Newest
Fabric	1.18.2 to 1.19.2 (2 versions)	1.19.2
Quilt	1.18.2 to 1.19.2 (2 versions)	1.19.2

From 4 recorded builds of Boat with Everything.

Build	Released	Game versions	Loaders
1.1.0-fabric-1.18.2 beta	2022-09-16	1.18.2	Fabric, Quilt
1.1.0-fabric-1.19.2-modfest beta	2022-09-09	1.19.2	Fabric, Quilt
1.1.0-fabric-1.19.2	2022-08-21	1.19.2	Fabric, Quilt
1.0.0-fabric-1.19.2 beta	2022-08-20	1.19.2	Fabric, Quilt

Pick a server or deploy a new one above; it is installed in one click.

From the catalog

Listed on Modrinth as “Mods”

Cars, boats, aircraft, ships and other things to drive or fly.

From source side support

Modrinth lists Boat with Everything as required on the server. Check its Modrinth page to see whether players need it too.