diff --git a/.registry/.gitignore b/.registry/.gitignore
deleted file mode 100644
index aa1ec1ea..00000000
--- a/.registry/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-*.tgz
diff --git a/.registry/server.js b/.registry/server.js
deleted file mode 100644
index d3489325..00000000
--- a/.registry/server.js
+++ /dev/null
@@ -1,81 +0,0 @@
-const { exec } = require ('child_process')
-const isWin = process.platform === 'win32'
-const express = require ('express')
-const fs = require ('fs')
-const app = express()
-
-const { PORT=4444 } = process.env
-const [,,port=PORT,scope='@capire'] = process.argv
-const cwd = __dirname
-
-// clean up on start (exit handler might not complete on Windows)
-exec(isWin ? 'del *.tgz' : 'rm *.tgz', {cwd})
-
-
-app.use('/-/:tarball', (req,res,next) => {
-  console.debug ('GET', req.params)
-  try {
-    const { tarball } = req.params
-    const pkgFull = tarball.substring(0, tarball.lastIndexOf('-'))
-    const [, pkg ] = /^\w+-(.+)/.exec(pkgFull)
-    fs.lstat(tarball,(err => {
-      if (err) console.debug (`npm pack ../${pkg}`)
-      if (err) exec(`npm pack ../${pkg}`,{cwd},next)
-      else next()
-    }))
-  } catch (e) {
-    console.error(e)
-    res.sendStatus(500)
-  }
-})
-
-app.use('/-', express.static(__dirname))
-
-app.get('/*', (req,res)=>{
-  const urlRegex = /^\/(@[\w-]+)\/(.+)/
-  const url = decodeURIComponent(req.url)
-  console.debug ('GET',url)
-  try {
-    if (!urlRegex.test(url))  return res.sendStatus(404)
-    const [, scpe, pkg ] = urlRegex.exec(url)
-    const package = require (`${scpe}/${pkg}/package.json`)
-    const tarball = `${scpe.slice(1)}-${pkg}-${package.version}.tgz`
-    // https://github.com/npm/registry/blob/master/docs/responses/package-metadata.md
-    res.json({
-      "name": package.name,
-      "dist-tags": {
-        "latest": package.version
-      },
-      "versions": {
-        [package.version]: {
-          "name": package.name,
-          "version": package.version,
-          "dist": {
-            "tarball": `${server.url}/-/${tarball}`
-          },
-        }
-      },
-    })
-  } catch (e) {
-    if (e.code === 'MODULE_NOT_FOUND')  return res.sendStatus(404)
-    console.error(e);  throw e
-  }
-})
-
-const server = app.listen(port, ()=>{
-  const url = server.url = `http://localhost:${server.address().port}`
-  console.log (`npm set ${scope}:registry=${url}`)
-  exec(`npm set ${scope}:registry=${url}`)
-  console.log (`${scope} registry listening on ${url}`)
-})
-
-
-const _exit = ()=>{
-  server.close()
-  exec(`npm conf rm "${scope}:registry"`, ()=> { process.exit() })
-}
-
-process.on ('SIGTERM',_exit)
-process.on ('SIGHUP',_exit)
-process.on ('SIGINT',_exit)
-process.on ('SIGUSR2',_exit)
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 40b41090..40d3ef3c 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -13,7 +13,7 @@
         "<node_internals>/**",
         "**/node_modules/**",
         "**/cds/lib/lazy.js",
-        "**/cds/lib/req/cls.js",
+        "**/cds/lib/req/cds-context.js",
         "**/odata-v4/okra/**"
       ]
     },
@@ -26,10 +26,24 @@
         "<node_internals>/**",
         "**/node_modules/**",
         "**/cds/lib/lazy.js",
-        "**/cds/lib/req/cls.js",
+        "**/cds/lib/req/cds-context.js",
         "**/odata-v4/okra/**"
       ]
-    }
+    },
+    {
+      "name": "Debug Mocha Tests",
+      "type": "node",
+      "request": "attach",
+      "port": 9229,
+      "continueOnAttach": true,
+      "skipFiles": [
+        "<node_internals>/**",
+        "**/node_modules/**",
+        "**/cds/lib/lazy.js",
+        "**/cds/lib/req/cds-context.js",
+        "**/odata-v4/okra/**",
+      ]
+    },
   ],
   "inputs": [
     {
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 44342b41..786fe8d4 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -10,10 +10,11 @@
       "<node_internals>/**",
       "**/node_modules/**",
       "**/cds/lib/lazy.js",
-      "**/cds/lib/req/cls.js",
+      "**/cds/lib/req/cds-context.js",
       "**/odata-v4/okra/**"
     ]
   },
+  "mochaExplorer.debuggerConfig": "Debug Mocha Tests",
   "mochaExplorer.parallel": true,
   "eslint.validate": [
     "cds",
@@ -22,5 +23,5 @@
     "csv (semicolon)",
     "tsv",
     "tab"
-  ]
+  ],
 }
\ No newline at end of file
diff --git a/bookshop/db/init.js b/bookshop/db/init.js
index 0db736ca..bfa0fc89 100644
--- a/bookshop/db/init.js
+++ b/bookshop/db/init.js
@@ -4,21 +4,21 @@
  * currencies, if not obtained through @capire/common.
  */
 
-module.exports = async (db)=>{
+module.exports = async (tx)=>{
 
-  const has_common = db.model.definitions['sap.common.Currencies'].elements.numcode
+  const has_common = tx.model.definitions['sap.common.Currencies']?.elements.numcode
   if (has_common) return
 
-  const already_filled = await db.exists('sap.common.Currencies',{code:'EUR'})
+  const already_filled = await tx.exists('sap.common.Currencies',{code:'EUR'})
   if (already_filled) return
 
-  await INSERT.into ('sap.common.Currencies') .columns (
-    'code','symbol','name'
+  await tx.run (INSERT.into ('sap.common.Currencies') .columns (
+    [ 'code', 'symbol', 'name' ]
   ) .rows (
-    [ 'EUR','€','Euro' ],
-    [ 'USD','$','US Dollar' ],
-    [ 'GBP','£','British Pound' ],
-    [ 'ILS','₪','Shekel' ],
-    [ 'JPY','¥','Yen' ],
-  )
+    [ 'EUR', '€', 'Euro' ],
+    [ 'USD', '$', 'US Dollar' ],
+    [ 'GBP', '£', 'British Pound' ],
+    [ 'ILS', '₪', 'Shekel' ],
+    [ 'JPY', '¥', 'Yen' ],
+  ))
 }
diff --git a/fiori/server.js b/fiori/server.js
index 70cf701b..b3ab5dde 100644
--- a/fiori/server.js
+++ b/fiori/server.js
@@ -1,8 +1,8 @@
-const cds = require("@sap/cds")
-
 // install OData v2 adapter
+const cds = require("@sap/cds")
 const proxy = require('@sap/cds-odata-v2-adapter-proxy')
-const proxyOpts = global.it ? { target:'auto' } : {} // for tests, set 'auto' to detect port dynamically
-cds.on('bootstrap', app => app.use(proxy(proxyOpts)))
+const opts = global.it ? { target:'auto' } : {}   // for tests, set 'auto' to detect port dynamically
+cds.on('bootstrap', app => app.use(proxy(opts)))  // install proxy
+cds.log('cov2ap','silent') // suppress anoying log outpout, e.g. for `npm run mocha -- --reporter nyan`
 
-module.exports = require('@capire/bookstore/server.js')
\ No newline at end of file
+module.exports = require('@capire/bookstore/server.js')
diff --git a/package.json b/package.json
index f2001e6f..10d0e3ea 100644
--- a/package.json
+++ b/package.json
@@ -29,13 +29,12 @@
   },
   "scripts": {
     "cleanup": "rm -rf node_modules && rm -rf */node_modules && rm -rf */*/node_modules",
-    "registry": "node .registry/server.js",
     "bookshop": "cds watch bookshop",
     "fiori": "cds watch fiori",
     "hello": "cds watch hello",
     "media": "cds watch media",
-    "mocha": "npx mocha || echo",
-    "jest": "npx jest",
+    "mocha": "CDS_TEST_SILENT=y npx mocha",
+    "jest": "npx jest --silent",
     "start": "cds watch fiori",
     "test": "npm run jest -- --silent",
     "test:hello": "cd hello && npm test"
@@ -48,7 +47,8 @@
   },
   "mocha": {
     "recursive": true,
-    "parallel": true
+    "parallel": true,
+    "timeout": 6666
   },
   "license": "SAP SAMPLE CODE LICENSE",
   "private": true
diff --git a/samples.md b/samples.md
index afaa083a..9caed0e8 100644
--- a/samples.md
+++ b/samples.md
@@ -1,7 +1,7 @@
 # Overview of Samples
 
 The following list gives an overview of the samples provided in subdirectories.
-Each sub directory essentially is an individual npm package arranged in an [all-in-one monorepo](all-in-one-monorepo) umbrella setup.
+Each sub directory essentially is an individual npm package arranged in an [all-in-one monorepo](#all-in-one-monorepo) umbrella setup.
 
 
 ## [@capire/hello-world](hello)
diff --git a/test/custom-handlers.test.js b/test/custom-handlers.test.js
index ae2184d3..5bd8acda 100644
--- a/test/custom-handlers.test.js
+++ b/test/custom-handlers.test.js
@@ -3,8 +3,9 @@ const cds = require('@sap/cds/lib')
 describe('cap/samples - Custom Handlers', () => {
 
   const { GET, POST, expect } = cds.test(__dirname+'/../bookshop')
-  if (cds.User.default) cds.User.default = cds.User.Privileged // hard core monkey patch
-  else cds.User = cds.User.Privileged // hard core monkey patch for older cds releases
+  beforeAll(()=>{
+    cds.User.default = cds.User.Privileged // hard core monkey patch
+  })
 
   it('should reject out-of-stock orders', async () => {
     await POST `/browse/submitOrder ${{ book: 201, quantity: 5 }}`
diff --git a/test/fiori.test.js b/test/fiori.test.js
index 9da8eb5e..a48abc3c 100644
--- a/test/fiori.test.js
+++ b/test/fiori.test.js
@@ -1,10 +1,12 @@
 const cds = require('@sap/cds/lib')
 
-describe('cap/samples - Fiori APIs - v2', () => {
+describe('cap/samples - Fiori APIs - v2', function() {
 
   const { GET, expect, axios } = cds.test ('@capire/fiori', '--with-mocks')
   axios.defaults.auth = { username: 'alice', password: 'admin' }
 
+  // if (this.timeout) this.timeout(1e6)
+
   it('serves $metadata documents in v2', async () => {
     const { headers, data } = await GET `/v2/browse/$metadata`
     expect(headers).to.contain({
diff --git a/test/localized-data/services.test.js b/test/localized-data/services.test.js
index a440e60e..8ec30485 100644
--- a/test/localized-data/services.test.js
+++ b/test/localized-data/services.test.js
@@ -1,8 +1,12 @@
+const cds = require('@sap/cds/lib')
+
 describe('cap/samples - Localized Data', () => {
 
-  const { GET, expect, cds } = require('@sap/cds/lib').test (__dirname)
-  if (cds.User.default) cds.User.default = cds.User.Privileged // hard core monkey patch
-  else cds.User = cds.User.Privileged // hard core monkey patch for older cds releases
+  const { GET, expect } = cds.test (__dirname)
+  beforeAll(()=>{
+    cds.User.default = cds.User.Privileged // hard core monkey patch
+  })
+
 
   it('serves localized $metadata documents', async () => {
     const { data } = await GET(`/browse/$metadata?sap-language=de`, { headers: { 'accept-language': 'de' }})
diff --git a/test/messaging.test.js b/test/messaging.test.js
index f31f715a..9e9ab66c 100644
--- a/test/messaging.test.js
+++ b/test/messaging.test.js
@@ -1,16 +1,13 @@
 const cds = require('@sap/cds/lib')
-const {resolve} = require('path')
 
 describe('cap/samples - Messaging', ()=>{
 
-    const { expect } = cds.test
+    const { expect } = cds.test.in(__dirname,'..')
     const _model = '@capire/reviews'
     const Reviews = 'sap.capire.reviews.Reviews'
-    if (cds.User.default) cds.User.default = cds.User.Privileged // hard core monkey patch
-    else cds.User = cds.User.Privileged // hard core monkey patch for older cds releases
-
-    beforeAll(() => { cds.root = resolve(__dirname, '..') })
-    afterAll(() => { cds.root = process.cwd() })
+    beforeAll(()=>{
+        cds.User.default = cds.User.Privileged // hard core monkey patch
+    })
 
     it ('should bootstrap sqlite in-memory db', async()=>{
         const db = await cds.deploy (_model) .to ('sqlite::memory:')
@@ -35,6 +32,7 @@ describe('cap/samples - Messaging', ()=>{
 
     it ('should add review', async ()=>{
         const review = { subject: "201", title: "Captivating", rating: ++N }
+        cds._debug = 1
         const response = await srv.create ('Reviews') .entries (review)
         expect (response) .to.containSubset (review)
     })
diff --git a/test/odata.test.js b/test/odata.test.js
index c0987828..73ac0ff4 100644
--- a/test/odata.test.js
+++ b/test/odata.test.js
@@ -4,47 +4,6 @@ describe('cap/samples - Bookshop APIs', () => {
   const { GET, expect, axios } = cds.test ('@capire/bookshop')
   axios.defaults.auth = { username: 'alice', password: 'admin' }
 
-  // Genres
-  const Drama = {
-    "name": "Drama",
-    "descr": null,
-    "ID": 11,
-    "parent_ID": 10
-  }
-  const Mystery = {
-    "name": "Mystery",
-    "descr": null,
-    "ID": 16,
-    "parent_ID": 10
-  }
-  const Romance = {
-    "name": "Romance",
-    "descr": null,
-    "ID": 15,
-    "parent_ID": 10
-  }
-
-  // Currencies
-  const GBP = {
-    "name": "British Pound",
-    "descr": null,
-    "code": "GBP",
-    "symbol": "£"
-  }
-  const USD = {
-    "name": "US Dollar",
-    "descr": null,
-    "code": "USD",
-    "symbol": "$"
-  }
-  const JPY = {
-    "name": "Yen",
-    "descr": null,
-    "code": "JPY",
-    "symbol": "¥"
-  }
-
-
   it('serves $metadata documents in v4', async () => {
     const { headers, status, data } = await GET `/browse/$metadata`
     expect(status).to.equal(200)
@@ -57,6 +16,9 @@ describe('cap/samples - Bookshop APIs', () => {
   })
 
   it('serves ListOfBooks?$expand=genre,currency', async () => {
+    const Mystery = { ID: 16, name: 'Mystery', descr: null, parent_ID: 10 }
+    const Romance = { ID: 15, name: 'Romance', descr: null, parent_ID: 10 }
+    const USD = { code: 'USD', name: 'US Dollar', descr: null, symbol: '$' }
     const { data } = await GET `/browse/ListOfBooks ${{
       params: { $search: 'Po', $select: `title,author`, $expand:`genre,currency` },
     }}`
@@ -126,14 +88,10 @@ describe('cap/samples - Bookshop APIs', () => {
   })
 
   it('serves user info', async () => {
-    {
-      const { data } = await GET (`/user/me`)
-      expect(data).to.containSubset({ id: 'alice', locale:'en' })
-    }
-    {
-      const { data } = await GET (`/user/me`, {auth: { username: 'joe' }})
-      expect(data).to.containSubset({ id: 'joe', locale:'en' })
-    }
+    const { data: alice } = await GET `/user/me`
+    expect(alice).to.containSubset({ id: 'alice', locale:'en' })
+    const { data: joe } = await GET (`/user/me`, {auth: { username: 'joe' }})
+    expect(joe).to.containSubset({ id: 'joe', locale:'en' })
   })
 
 })
diff --git a/test/registry.test.js b/test/registry.test.js
deleted file mode 100644
index e203e25b..00000000
--- a/test/registry.test.js
+++ /dev/null
@@ -1,57 +0,0 @@
-
-const cds = require('@sap/cds/lib')
-const { fork } = require('child_process')
-const { resolve } = require('path')
-const verbose = process.env.CDS_TEST_VERBOSE
-
-describe('cap/samples - Local NPM registry', () => {
-
-  const { expect } = cds.test
-  // ||true
-
-  let registry
-  let axios
-  const cwd = resolve(__dirname, '..')
-
-  before(async ()=> {
-    const env = Object.assign(process.env, {PORT:'0'})
-    const res = await exec (resolve(cwd, '.registry/server.js'), {cwd, stdio: 'pipe', env})
-    registry = res.cp
-    axios = require('axios').create ({ baseURL: res.url, validateStatus: (status)=>status<500 })
-  })
-
-  after(done => { registry.once('exit',done); registry.kill() })
-
-  for (const mod of ['bookshop', 'data-viewer', 'fiori','orders','reviews']) {
-    it(`should serve ${mod}`, async () => {
-      const resp = await axios.get(`/@capire/${mod}`)
-      expect(resp.data).to.containSubset({name: `@capire/${mod}`, versions:{}})
-      const versions = Object.values(resp.data.versions)
-      await axios.get(versions[0].dist.tarball)
-    })
-  }
-  it(`should return 404 for unknown packages`, async () => {
-    let resp = await axios.get(`/@capire/foo`)
-    expect(resp.status).to.equal(404)
-    resp = await axios.get(`/foo`)
-    expect(resp.status).to.equal(404)
-  })
-
-})
-
-function exec (script, opts) {
-  return new Promise((resolve, reject)=> {
-    const cp = fork (script, [], opts)
-      .on('error', err => reject(new Error(err)))
-    cp.stdout.on('data', chunk => {
-      if (verbose) console.log(chunk.toString())
-      if (chunk.toString().match(/listening.*(http:.*:\d+)/i)) {
-         resolve({cp, url:RegExp.$1})
-      }
-    })
-    cp.stderr.on('data', chunk => {
-      if (verbose)  console.error(chunk.toString())
-    })
-  })
-
-}