nvim: add firenvim and set up socket

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

@@ -0,0 +1,48 @@
+if not vim.g.started_by_firenvim then
+    -- create socket for local clients to connect to
+    local sockdir = (vim.env['XDG_RUNTIME_DIR']
+        or vim.env['XDG_STATE_HOME'] or vim.env['HOME'] .. '/.local/state')
+    vim.fn.mkdir(sockdir, 'p')
+    if vim.fn.filereadable(sockdir .. '/nvim.sock') == 0 then
+        vim.fn.serverstart(sockdir .. '/nvim.sock');
+    end
+else
+    -- never take over text areas automatically
+    vim.g.firenvim_config = {
+        localSettings = {
+            [".*"] = {
+                priority = 0,
+                takeover = 'never',
+            }
+        }
+    }
+
+    vim.o.wrap = true
+    vim.o.guifont = 'Source_Code_Pro:h10'
+    vim.o.textwidth = 0
+
+    local fv_fileprefix = vim.env['XDG_RUNTIME_DIR'] .. '/firenvim/'
+    vim.api.nvim_create_augroup('firenvim', { clear = true })
+    vim.api.nvim_create_autocmd({ 'BufEnter' }, {
+        group = 'firenvim',
+        pattern = {
+            fv_fileprefix .. 'schlomp.space_*',
+            fv_fileprefix .. 'codeberg.org_*',
+            fv_fileprefix .. 'gitlab.com_*',
+            fv_fileprefix .. 'github.com_*',
+            fv_fileprefix .. 'very.tastytea.de_*',
+            fv_fileprefix .. 'bookwyrm.social_*',
+            fv_fileprefix .. 'openlibrary.org_*',
+            fv_fileprefix .. 'bugs.gentoo.org_*',
+        },
+        command = [[set filetype=markdown | set tw=0]]
+    })
+    vim.api.nvim_create_autocmd({ 'BufEnter' }, {
+        group = 'firenvim',
+        pattern = {
+            fv_fileprefix .. 'wiki.gentoo.org_*',
+            fv_fileprefix .. '*.wikipedia.org_*',
+        },
+        command = [[set filetype=mediawiki | set tw=0]]
+    })
+end

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

@@ -0,0 +1,7 @@
+return {
+    -- embed nvim in browsers
+    { 'https://github.com/glacambre/firenvim',
+        version = '*',
+        build = [[:call firenvim#install(0)]]
+    }
+}