diff --git a/.vim/autoload/vimrc/gh.vim b/.vim/autoload/vimrc/gh.vim
new file mode 100644
index 0000000..ab588da
--- /dev/null
+++ b/.vim/autoload/vimrc/gh.vim
@@ -0,0 +1,36 @@
+vim9script noclear
+def A(a: any)
+var p = str2nr($'{b:repo_list.param.page}')
+if a ==# '+'
+p += 1
+elseif p < 2
+return
+else
+p -= 1
+endif
+b:repo_list.param.page = $'{p}'
+const c = printf(
+'e gh://%s/repos?%s',
+b:repo_list.owner,
+gh#http#encode_param(b:repo_list.param)
+)
+gh#gh#delete_buffer(b:, 'gh_repo_list_bufid')
+execute(c)
+enddef
+if !exists('*GhRepoListChangePage')
+g:GhRepoListChangePage = (op: any) => {
+A(op)
+}
+endif
+export def ReposKeymap()
+nn <buffer> i <ScriptCmd>execute 'edit!' ['gh:/', getline('.')->matchstr('\S\+'), 'issues']->join('/')<CR>
+gh#map#add('gh-buffer-repo-list', 'nnoremap', '<C-h>', '<ScriptCmd>call g:GhRepoListChangePage("-")<CR>')
+gh#map#add('gh-buffer-repo-list', 'nnoremap', '<C-l>', '<ScriptCmd>call g:GhRepoListChangePage("+")<CR>')
+enddef
+export def IssuesKeymap()
+nn <buffer> <CR> <ScriptCmd>execute 'new' [expand('%'), getline('.')->matchstr('[0-9]\+'), 'comments']->join('/')<CR>
+nn <buffer> r <ScriptCmd>execute 'edit!' expand('%:h:h') .. '/repos'<CR>
+enddef
+export def IssueCommentsKeymap()
+nn <buffer> <CR> <ScriptCmd>execute 'bo vsplit' [expand('%'), getline('.')->matchstr('[0-9]\+')]->join('/')<CR><Cmd>setlocal wrap<CR>
+enddef
diff --git a/.vim/autoload/vimrc/lazyload.vim b/.vim/autoload/vimrc/lazyload.vim
index 3f194d8..d979c39 100644
--- a/.vim/autoload/vimrc/lazyload.vim
+++ b/.vim/autoload/vimrc/lazyload.vim
@@ -75,17 +75,10 @@ nn <Space>gd <Cmd>Gdiffsplit<CR>
 nn <Space>gl <Cmd>Git pull<CR>
 nn <Space>gt :<C-u>GitTagPush<Space>
 nn <Space>gC :<C-u>Git checkout %
-au vimrc FileType gh-repos {
-nn <buffer> i <ScriptCmd>execute 'edit!' ['gh:/', getline('.')->matchstr('\S\+'), 'issues']->join('/')<CR>
-}
-au vimrc FileType gh-issues {
-nn <buffer> <CR> <ScriptCmd>execute 'new' [expand('%'), getline('.')->matchstr('[0-9]\+'), 'comments']->join('/')<CR>
-nn <buffer> r <ScriptCmd>execute 'edit!' expand('%:h:h') .. '/repos'<CR>
-}
-au vimrc FileType gh-issue-comments {
-nn <buffer> <CR> <ScriptCmd>execute 'bo vsplit' [expand('%'), getline('.')->matchstr('[0-9]\+')]->join('/')<CR><Cmd>setlocal wrap<CR>
-}
-nn <Space>gh <Cmd>tabe gh://utubo/repos<CR>
+nn <Space>gh <Cmd>e gh://utubo/repos<CR>
+au vimrc FileType gh-repos vimrc#gh#ReposKeymap()
+au vimrc FileType gh-issues vimrc#gh#IssuesKeymap()
+au vimrc FileType gh-issue-comments vimrc#gh#IssueCommentsKeymap()
 nn <F2> <Cmd>MRUToggle<CR>
 g:MRU_Exclude_Files = has('win32') ? $'{$TEMP}\\.*' : '^/tmp/.*\|^/var/tmp/.*'
 nn <Leader>a <Cmd>PortalAim<CR>
diff --git a/src/.vim/autoload/vimrc/gh.src.vim b/src/.vim/autoload/vimrc/gh.src.vim
new file mode 100644
index 0000000..9eb4126
--- /dev/null
+++ b/src/.vim/autoload/vimrc/gh.src.vim
@@ -0,0 +1,48 @@
+vim9script noclear
+
+# repos {{{
+def GhRepoListChangePage(op: any)
+	var p = str2nr($'{b:repo_list.param.page}')
+	if op ==# '+'
+		p += 1
+	elseif p < 2
+		return
+	else
+		p -= 1
+	endif
+	b:repo_list.param.page = $'{p}'
+
+	const cmd = printf(
+		'e gh://%s/repos?%s',
+		b:repo_list.owner,
+		gh#http#encode_param(b:repo_list.param)
+	)
+	gh#gh#delete_buffer(b:, 'gh_repo_list_bufid')
+	execute(cmd)
+enddef
+if !exists('*GhRepoListChangePage')
+	g:GhRepoListChangePage = (op: any) => {
+		GhRepoListChangePage(op)
+	}
+endif
+
+export def ReposKeymap()
+	nnoremap <buffer> i <ScriptCmd>execute 'edit!' ['gh:/', getline('.')->matchstr('\S\+'), 'issues']->join('/')<CR>
+	gh#map#add('gh-buffer-repo-list', 'nnoremap', '<C-h>', '<ScriptCmd>call g:GhRepoListChangePage("-")<CR>')
+	gh#map#add('gh-buffer-repo-list', 'nnoremap', '<C-l>', '<ScriptCmd>call g:GhRepoListChangePage("+")<CR>')
+enddef
+# }}}
+
+# issues {{{
+export def IssuesKeymap()
+	nnoremap <buffer> <CR> <ScriptCmd>execute 'new' [expand('%'), getline('.')->matchstr('[0-9]\+'), 'comments']->join('/')<CR>
+	nnoremap <buffer> r <ScriptCmd>execute 'edit!' expand('%:h:h') .. '/repos'<CR>
+enddef
+# }}}
+
+# issue-comments {{{
+export def IssueCommentsKeymap()
+	nnoremap <buffer> <CR> <ScriptCmd>execute 'bo vsplit' [expand('%'), getline('.')->matchstr('[0-9]\+')]->join('/')<CR><Cmd>setlocal wrap<CR>
+enddef
+# }}}
+#
diff --git a/src/.vim/autoload/vimrc/lazyload.src.vim b/src/.vim/autoload/vimrc/lazyload.src.vim
index c408af0..05416c3 100644
--- a/src/.vim/autoload/vimrc/lazyload.src.vim
+++ b/src/.vim/autoload/vimrc/lazyload.src.vim
@@ -118,18 +118,10 @@ nnoremap <Space>gC :<C-u>Git checkout %
 #}}}
 
 # gh {{{
-# ftpluginにすると定義がバラバラになって見通し悪くなるかな
-au vimrc FileType gh-repos {
-	nnoremap <buffer> i <ScriptCmd>execute 'edit!' ['gh:/', getline('.')->matchstr('\S\+'), 'issues']->join('/')<CR>
-}
-au vimrc FileType gh-issues {
-	nnoremap <buffer> <CR> <ScriptCmd>execute 'new' [expand('%'), getline('.')->matchstr('[0-9]\+'), 'comments']->join('/')<CR>
-	nnoremap <buffer> r <ScriptCmd>execute 'edit!' expand('%:h:h') .. '/repos'<CR>
-}
-au vimrc FileType gh-issue-comments {
-	nnoremap <buffer> <CR> <ScriptCmd>execute 'bo vsplit' [expand('%'), getline('.')->matchstr('[0-9]\+')]->join('/')<CR><Cmd>setlocal wrap<CR>
-}
-nnoremap <Space>gh <Cmd>tabe gh://utubo/repos<CR>
+nnoremap <Space>gh <Cmd>e gh://utubo/repos<CR>
+au vimrc FileType gh-repos vimrc#gh#ReposKeymap()
+au vimrc FileType gh-issues vimrc#gh#IssuesKeymap()
+au vimrc FileType gh-issue-comments vimrc#gh#IssueCommentsKeymap()
 # }}}
 
 # MRU {{{