diff --git a/config/nvim/ftplugin/haskell.vim b/config/nvim/ftplugin/haskell.vim
new file mode 100644
index 0000000..02d9248
--- /dev/null
+++ b/config/nvim/ftplugin/haskell.vim
@@ -0,0 +1,4 @@
+
+" Interactive
+nnoremap <buffer> <Leader>i :terminal cabal exec -- ghci -Wall '%'<CR>
+
diff --git a/config/nvim/ftplugin/markdown.vim b/config/nvim/ftplugin/markdown.vim
new file mode 100644
index 0000000..c8b0925
--- /dev/null
+++ b/config/nvim/ftplugin/markdown.vim
@@ -0,0 +1,14 @@
+
+" Making and showing html
+nnoremap <buffer> <Leader>c :terminal markdown '%:p' > '%:p:r.html'<CR>
+nnoremap <buffer> <Leader>i :!rifle '%:p:r.html'<CR>
+
+setlocal textwidth=0
+setlocal wrapmargin=0
+setlocal colorcolumn=0
+setlocal wrap
+setlocal linebreak
+setlocal nolist
+
+nmap <buffer> j gj
+nmap <buffer> k gk
diff --git a/config/nvim/ftplugin/python.vim b/config/nvim/ftplugin/python.vim
new file mode 100644
index 0000000..7ab2d64
--- /dev/null
+++ b/config/nvim/ftplugin/python.vim
@@ -0,0 +1,40 @@
+
+" Interactive
+nnoremap <buffer> <Leader>i :terminal python -i '%'<CR>
+
+" Lint
+function Pylint()
+    silent !pylint --reports=n --output-format=parseable '%' > /tmp/errors.err 2> /dev/null
+    cfile
+    silent !rm /tmp/errors.err
+    redraw!
+    copen
+endfunction
+
+nnoremap <buffer> <Leader>x :call Pylint()<CR>
+
+" Folding
+function PythonFold(lnum)
+    if getline(a:lnum-1) =~ '^\s*def\s' || getline(a:lnum-1) =~ '^\s*class\s'
+        return indent(a:lnum-1) / 4 + 1
+    endif
+    if getline(a:lnum) =~ '^\s*def\s' || getline(a:lnum) =~ '^\s*class\s'
+        return indent(a:lnum) / 4
+    endif
+    if getline(a:lnum+1) =~ '^\s*def\s' || getline(a:lnum+1) =~ '^\s*class\s'
+        return indent(a:lnum + 1) / 4
+    endif
+    if getline(a:lnum+1) =~ '^\S.*$'
+        return '0'
+    endif
+    return '='
+endfunction
+
+function PythonFoldText()
+    return repeat(' ', indent(v:foldstart - 1) + 4) . '+'
+endfunction
+
+setlocal foldmethod=expr
+setlocal foldexpr=PythonFold(v:lnum)
+setlocal foldtext=PythonFoldText()
+
diff --git a/config/nvim/ftplugin/ruby.vim b/config/nvim/ftplugin/ruby.vim
new file mode 100644
index 0000000..7abf672
--- /dev/null
+++ b/config/nvim/ftplugin/ruby.vim
@@ -0,0 +1,33 @@
+
+" Interactive
+nnoremap <buffer> <Leader>i :!irb -Ilib -r ./%<CR><CR>
+
+" Indent
+setlocal tabstop=2
+setlocal shiftwidth=2
+
+" Folding
+function RubyFold(lnum)
+    if getline(a:lnum) =~ '^\s*def\s' || getline(a:lnum) =~ '^\s*class\s' || getline(a:lnum) =~ '^\s*module\s'
+        return indent(a:lnum) / 2 + 1
+    endif
+    if getline(a:lnum) =~ '^\s*end'
+        return indent(a:lnum) / 2 + 1
+    endif
+    if getline(a:lnum - 1) =~ '^\s*end'
+        return indent(a:lnum - 1) / 2
+    endif
+    return '='
+endfunction
+
+function RubyFoldText()
+    return getline(v:foldstart) . ' +'
+endfunction
+
+setlocal foldmethod=expr
+setlocal foldexpr=RubyFold(v:lnum)
+setlocal foldtext=RubyFoldText()
+
+" Use rake as makeprogram
+setlocal makeprg=rake
+
diff --git a/config/nvim/ftplugin/sh.vim b/config/nvim/ftplugin/sh.vim
new file mode 100644
index 0000000..3333769
--- /dev/null
+++ b/config/nvim/ftplugin/sh.vim
@@ -0,0 +1,4 @@
+
+" Interactive
+nnoremap <buffer> <Leader>i :terminal bash --init-file './%'<CR>
+
diff --git a/config/nvim/ftplugin/tex.vim b/config/nvim/ftplugin/tex.vim
new file mode 100644
index 0000000..4fbce46
--- /dev/null
+++ b/config/nvim/ftplugin/tex.vim
@@ -0,0 +1,13 @@
+
+" Make a pdf
+nnoremap <buffer> <Leader>c :terminal pdflatex -shell-escape '%'<CR><CR>
+nnoremap <buffer> <Leader>i :!rifle '%:p:r.pdf'<CR><CR>
+
+" Indent
+setlocal tabstop=2
+setlocal shiftwidth=2
+setlocal softtabstop=2
+
+" Folding
+setlocal foldmethod=marker
+