const sBox = await db.boxes.subscribeOne(
										{ id: 1 }, 
										{ select: { comment: 1 }}, 
										box => {
											infoDiv.innerText = JSON.stringify(box);
										}
									);

									input.onkeyup = e => {
										sBox.update({ comment: input.value });
									}
									
								

									
										const boxSync = db.boxes.syncOne(
											{ id: 1 },
											{}, 
											box => {
												boxDiv.style.left = box.x + "px";
												boxDiv.style.top = box.y + "px";
											}
										);
	
										containerDiv.onpointermove = e => {
											boxSync.update({ x: e.offsetX - 30, y: e.offsetY - 100 });
										}
									
								

										
										// client.js
										const sBox = db.boxes2.subscribe(
											{ }, 
											{ }, 
											boxes => {
												infoDiv.innerText = boxes.map(box => JSON.stringify(box)).join("\n")
											}
										);

										input.onkeyup = async e => {
											try {
												await db.boxes2.update({}, { comment: input.value });
												errorDiv.innerText = "";
											} catch(err) {
												errorDiv.innerText = JSON.stringify(err, null, 2);
											}
										}

										// server.js
										...
										publish: (socket, db) => ({

											// table
											boxes2: {

												// operation
												select: {

													// rules
													fields: { id: 1, comment: 1 }, // Can only select these two fields
													forcedFilter: { 	// Can only view public or own data
														$or:[
															{ socket_id: socket.id }, 
															{ is_public: true }
														] 
													},
												},

												// operation
												update: {

													// rules
													fields: { socket_id: -1, is_public: -1 },	// Can update any field except "socket_id" and "is_public"
													forcedFilter: { socket_id: socket.id }, 	// Can only update own data
													validate: async (box) => {								// Custom logic
														const allowed = ["a", "b", "c"]
														if(
															box && 
															box.comment && 
															box.comment.split("").some(char => 
																!allowed.includes(char.toLowerCase())
															)
														) {
															throw `Only allowed characters: ${allowed}`;
														}
														return box;
													}
												},

											}
										}),
										...