Setting up omnisharp via nvim-lspconfig and nvim-lspinstall

I really like the idea of LSP support which would bring it closer to much more user friendly vscode which I am currently using.
I don’t want to trash talk neovim on neovim forum its amazing piece of software but I am always reluctant to use these power user text editors like neovim, emacs because it usually takes more than a day to set them up again on new system its not just backuping init.vim or vimrc but having correct folders, env vars, having correct plugin manager and what not.
Combination of LSP support, nvim-lspconfig and nvim-lspinstall is finally something I would like to use. My main languages are typescript and c#. I was able to setup typescript without problem but I am having problems with c#. I would appriacte any help.

My OS:

ProductName:	macOS
ProductVersion:	11.1
BuildVersion:	20C69

I have lattest everything

brew install --HEAD luajit
brew install --HEAD neovim
brew reinstall neovim
:PlugInstall
:PlugUpgrade
:PlugUpdate
:LspInstall csharp

My init.vim

if empty(glob('~/.local/share/nvim/site/autoload/plug.vim'))
    silent !curl -fLo ~/.local/share/nvim/site/autoload/plug.vim --create-dirs
        \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
    autocmd VimEnter * PlugInstall --sync | source ~/.config/nvim/init.vim
endif

call plug#begin('~/.config/nvim/plugged')

Plug 'neovim/nvim-lspconfig'
Plug 'kabouzeid/nvim-lspinstall'
Plug 'mhinz/vim-startify'
Plug 'ahmedkhalf/lsp-rooter.nvim'

call plug#end()

set nobackup
set nowritebackup
set number relativenumber

lua << EOF
local on_attach = function(client, bufnr)
  local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
  local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end

  buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')

  local opts = { noremap=true, silent=true }
  buf_set_keymap('n', 'gD', '<Cmd>lua vim.lsp.buf.declaration()<CR>', opts)
  buf_set_keymap('n', 'gd', '<Cmd>lua vim.lsp.buf.definition()<CR>', opts)
  buf_set_keymap('n', 'K', '<Cmd>lua vim.lsp.buf.hover()<CR>', opts)
  buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
  buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
  buf_set_keymap('n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
  buf_set_keymap('n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
  buf_set_keymap('n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
  buf_set_keymap('n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
  buf_set_keymap('n', '<space>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
  buf_set_keymap('n', '<space>e', '<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>', opts)
  buf_set_keymap('n', '[d', '<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>', opts)
  buf_set_keymap('n', ']d', '<cmd>lua vim.lsp.diagnostic.goto_next()<CR>', opts)
  buf_set_keymap('n', '<space>q', '<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>', opts)

  if client.resolved_capabilities.document_formatting then
    buf_set_keymap("n", "<space>f", "<cmd>lua vim.lsp.buf.formatting()<CR>", opts)
  elseif client.resolved_capabilities.document_range_formatting then
    buf_set_keymap("n", "<space>f", "<cmd>lua vim.lsp.buf.range_formatting()<CR>", opts)
  end

  if client.resolved_capabilities.document_highlight then
    vim.api.nvim_exec([[
    augroup lsp_document_highlight
    autocmd! * <buffer>
    autocmd CursorHold <buffer> lua vim.lsp.buf.document_highlight()
    autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()
    augroup END
    ]], false)
  end
end

local function make_config()
  local capabilities = vim.lsp.protocol.make_client_capabilities()
  capabilities.textDocument.completion.completionItem.snippetSupport = true
  return {
    capabilities = capabilities,
    on_attach = on_attach,
  }
end

-- lsp-install
local function setup_servers()
  require'lspinstall'.setup()

  local servers = require'lspinstall'.installed_servers()

  for _, server in pairs(servers) do
    local config = make_config()
    require'lspconfig'[server].setup(config)
  end
end

setup_servers()

require'lspinstall'.post_install_hook = function ()
  setup_servers() -- reload installed servers
  vim.cmd("bufdo e") -- this triggers the FileType autocmd that starts the server
end

vim.lsp.set_log_level("debug")
EOF

:LspInfo

Configured servers: csharp
Neovim logs at: /Users/<redacted>/.cache/nvim/lsp.log

1 client(s) attached to this buffer: csharp

  Client: csharp (id 1)
        root:      /Users/<redacted>/Projects/NvimOmniTest
        filetypes: cs, vb
        cmd:       /Users/<redacted>/.local/share/nvim/lspinstall/csharp/./run --languag
eserver --hostPID 58744



1 active client(s):

  Client: csharp (id 1)
        root:      /Users/<redacted>/Projects/NvimOmniTest
        filetypes: cs, vb
        cmd:       /Users/<redacted>/.local/share/nvim/lspinstall/csharp/./run --languag
eserver --hostPID 58744



Clients that match the filetype cs:

  Config: csharp
        cmd:               /Users/<redacted>/.local/share/nvim/lspinstall/csharp/./run -
-languageserver --hostPID 58744
        cmd is executable: True
        identified root:   /Users/<redacted>/Projects/NvimOmniTest
        custom handlers:

Omnisharp file permissions

drwxr-xr-x 755 bin
drwxr-xr-x 755 etc
drwxr-xr-x 755 lib
-rw-r--r-- 644 license.md
drwxr-xr-x 755 omnisharp
-rwxr-xr-x 755 run

I created c# project with

dotnet new webapi --no-https -o NvimOmniTest
cd NvimTest
dotnet build

Logs when I try to use go to definition for user created type inside same file no other commands work either

Btw. I am able to make c# work with coc-omnisharp or omnisharp-vim but I want to specifically use lsp-install for reasons stated above.

Any help is appriciated if you need more info let me know.