set up jupynium plugin, letting neovim synchronously manage a local jupyter kernel

init.lua

@@ -319,6 +319,14 @@ require('lazy').setup({
       }
     end,
   },
+  {
+    'kiyoon/jupynium.nvim',
+    -- build = 'pip3 install --user .',
+    build = 'conda run --no-capture-output -n jupynium pip install .',
+    enabled = vim.fn.isdirectory(vim.fn.expand '~/miniconda3/envs/jupynium'),
+  },
+  'rcarriga/nvim-notify', -- optional
+  'stevearc/dressing.nvim', -- optional, UI for :JupyniumKernelSelect
 
   -- NOTE: Plugins can also be added by using a table,
   -- with the first argument being the link and the following
@@ -1042,5 +1050,135 @@ require('lazy').setup({
   },
 })
 
+require('jupynium').setup {
+  --- For Conda environment named "jupynium",
+  --- python_host = { 'conda', 'run', '--no-capture-output', '-n', 'jupynium', 'python' },
+  python_host = { 'conda', 'run', '--no-capture-output', '-n', 'datascience', 'python' },
+  -- python_host = vim.g.python3_host_prog or "python3",
+
+  default_notebook_URL = 'localhost:8888/nbclassic',
+
+  -- Write jupyter command but without "notebook"
+  -- When you call :JupyniumStartAndAttachToServer and no notebook is open,
+  -- then Jupynium will open the server for you using this command. (only when notebook_URL is localhost)
+  --- jupyter_command = "jupyter",
+  --- For Conda, maybe use base environment
+  --- then you can `conda install -n base nb_conda_kernels` to switch environment in Jupyter Notebook
+  --- jupyter_command = { 'conda', 'run', '--no-capture-output', '-n', 'base', 'jupyter' },
+  jupyter_command = { 'conda', 'run', '--no-capture-output', '-n', 'datascience', 'jupyter' },
+
+  -- Used when notebook is launched by using jupyter_command.
+  -- If nil or "", it will open at the git directory of the current buffer,
+  -- but still navigate to the directory of the current buffer. (e.g. localhost:8888/nbclassic/tree/path/to/buffer)
+  notebook_dir = nil,
+
+  -- Used to remember the last session (password etc.).
+  -- e.g. '~/.mozilla/firefox/profiles.ini'
+  -- or '~/snap/firefox/common/.mozilla/firefox/profiles.ini'
+  firefox_profiles_ini_path = nil,
+  -- nil means the profile with Default=1
+  -- or set to something like 'default-release'
+  firefox_profile_name = nil,
+
+  -- Open the Jupynium server if it is not already running
+  -- which means that it will open the Selenium browser when you open this file.
+  -- Related command :JupyniumStartAndAttachToServer
+  auto_start_server = {
+    enable = false,
+    file_pattern = { '*.ju.*' },
+  },
+
+  -- Attach current nvim to the Jupynium server
+  -- Without this step, you can't use :JupyniumStartSync
+  -- Related command :JupyniumAttachToServer
+  auto_attach_to_server = {
+    enable = true,
+    file_pattern = { '*.ju.*', '*.md' },
+  },
+
+  -- Automatically open an Untitled.ipynb file on Notebook
+  -- when you open a .ju.py file on nvim.
+  -- Related command :JupyniumStartSync
+  auto_start_sync = {
+    enable = false,
+    file_pattern = { '*.ju.*', '*.md' },
+  },
+
+  -- Automatically keep filename.ipynb copy of filename.ju.py
+  -- by downloading from the Jupyter Notebook server.
+  -- WARNING: this will overwrite the file without asking
+  -- Related command :JupyniumDownloadIpynb
+  auto_download_ipynb = true,
+
+  -- Automatically close tab that is in sync when you close buffer in vim.
+  auto_close_tab = true,
+
+  -- Always scroll to the current cell.
+  -- Related command :JupyniumScrollToCell
+  autoscroll = {
+    enable = true,
+    mode = 'always', -- "always" or "invisible"
+    cell = {
+      top_margin_percent = 20,
+    },
+  },
+
+  scroll = {
+    page = { step = 0.5 },
+    cell = {
+      top_margin_percent = 20,
+    },
+  },
+
+  -- Files to be detected as a jupynium file.
+  -- Add highlighting, keybindings, commands (e.g. :JupyniumStartAndAttachToServer)
+  -- Modify this if you already have lots of files in Jupytext format, for example.
+  jupynium_file_pattern = { '*.ju.*' },
+
+  use_default_keybindings = true,
+  textobjects = {
+    use_default_keybindings = true,
+  },
+
+  syntax_highlight = {
+    enable = true,
+  },
+
+  -- Dim all cells except the current one
+  -- Related command :JupyniumShortsightedToggle
+  shortsighted = false,
+
+  -- Configure floating window options
+  -- Related command :JupyniumKernelHover
+  kernel_hover = {
+    floating_win_opts = {
+      max_width = 84,
+      border = 'none',
+    },
+  },
+
+  notify = {
+    ignore = {
+      -- "download_ipynb",
+      -- "error_download_ipynb",
+      -- "attach_and_init",
+      -- "error_close_main_page",
+      -- "notebook_closed",
+    },
+  },
+}
+
+-- You can link highlighting groups.
+-- This is the default (when colour scheme is unknown)
+-- Try with CursorColumn, Pmenu, Folded etc.
+vim.cmd [[
+hi! link JupyniumCodeCellSeparator CursorLine
+hi! link JupyniumMarkdownCellSeparator CursorLine
+hi! link JupyniumMarkdownCellContent CursorLine
+hi! link JupyniumMagicCommand Keyword
+]]
+
+-- Please share your favourite settings on other colour schemes, so I can add defaults.
+-- Currently, tokyonight is supported.
 -- The line beneath this is called `modeline`. See `:help modeline`
 -- vim: ts=2 sts=2 sw=2 et