nvim: replace colorcolumn function with cc='+1'

.config/nvim/lua/my/functions.lua

@@ -67,32 +67,6 @@ end
 
 vim.api.nvim_create_user_command('ModelineInsert', M.insert_modeline, {})
 
--- set colorcolumn to textwidth after buffer is displayed or option is changed
-function M.set_colorcolumn()
-    if vim.o.textwidth > 0 then
-        vim.opt_local.colorcolumn = { vim.o.textwidth }
-    else
-        vim.opt_local.colorcolumn = ''
-    end
-end
-
-vim.api.nvim_create_augroup('config_settings', { clear = true })
-vim.api.nvim_create_autocmd(
-    { 'BufEnter' },
-    {
-        group = 'config_settings',
-        callback = M.set_colorcolumn
-    }
-)
-vim.api.nvim_create_autocmd(
-    { 'OptionSet' },
-    {
-        group = 'config_settings',
-        pattern = { 'textwidth' },
-        callback = M.set_colorcolumn
-    }
-)
-
 function M.get_project_root()
     local path = vim.api.nvim_buf_get_name(0)
     local root_markers = {

.config/nvim/lua/my/net.lua

@@ -21,7 +21,6 @@ if vim.g.started_by_firenvim then
     vim.o.wrap = true
     vim.o.guifont = 'Source_Code_Pro:h10'
     vim.o.textwidth = 0
-    vim.o.colorcolumn = '0'
 
     local FV_fileprefix = vim.env['XDG_RUNTIME_DIR'] .. '/firenvim/'
     vim.api.nvim_create_augroup('firenvim', { clear = true })
@@ -39,6 +38,6 @@ if vim.g.started_by_firenvim then
                 FV_fileprefix .. 'openlibrary\\.org_*',
                 FV_fileprefix .. 'bugs\\.gentoo\\.org_*',
             },
-            command = [[set filetype=markdown | set tw=0 cc=0]]
+            command = [[set filetype=markdown | set tw=0]]
         })
 end

.config/nvim/lua/my/settings.lua

@@ -4,7 +4,7 @@ local options = {
     list = true,                            -- show whitespace
     listchars = 'tab:▸ ,trail:·,nbsp:+',
     textwidth = 80,                         -- default text width
-    colorcolumn = tostring(vim.o.textwidth),
+    colorcolumn = '+1',                     -- display column 1 char after tw
     wrap = false,                           -- don't wrap long lines
     linebreak = true,                       -- break on word boundaries
     cursorline = true,                      -- highlight row with cursor