diff --git a/CURRICULUM.md b/CURRICULUM.md
index 66cf8e6..f72a3fd 100644
--- a/CURRICULUM.md
+++ b/CURRICULUM.md
@@ -68,20 +68,11 @@ Flag numbers identify the weak dimension(s): 1=Concept Focus, 2=Starter Calibrat
 > Ref: `DataTypes/DataTypes.sv`, `Arrays/PackedArrays.sv`,
 > `Arrays/Packed_UnpackedArrays.sv`
 
-### Chapter: Interfaces & Procedures
-| Slug | Title | Status | Score | Prereqs | Teaches |
-|---|---|---|---|---|---|
-| `sv/interfaces` | Interfaces | ✅ | 25/27 ⚠️2,9 | `sv/modules-and-ports`, `sv/parameters` | `interface`, signal bundling, interface functions (`sprint()`), dot-notation access |
-| `sv/modports` | Modports | ✅ | 25/27 ⚠️2,9 | `sv/interfaces` | `modport` (initiator/target), direction enforcement, `virtual interface` for UVM |
-| `sv/tasks-functions` | Tasks | ✅ | 24/27 ⚠️1,9 | `sv/interfaces`, `sv/parameters` | `task` (automatic, timing-aware), `function` (pure), driving DUT via virtual interface |
-| `sv/clocking-blocks` | Clocking Blocks | 💡 | — | `sv/interfaces` | `clocking` block, input/output skew, synchronous testbench sampling |
-
 ### Chapter: State Machines
 | Slug | Title | Status | Score | Prereqs | Teaches |
 |---|---|---|---|---|---|
 | `sv/enums` | typedef enum | ✅ | 24/27 ⚠️2,9 | `sv/always-ff`, `sv/always-comb` | `typedef enum`, named constants, enum-typed ports, enum in `case` |
-| `sv/fsm` | Two-Always Moore FSM | ✅ | 27/27 | `sv/enums`, `sv/always-ff`, `sv/always-comb` | two-always Moore pattern (FF state + comb output), FSM-gated SRAM write/read |
-| `sv/mealy-fsm` | Mealy FSM | 📝 | — | `sv/fsm` | Mealy output depends on current input, single-always style |
+| `sv/mealy-fsm` | Mealy FSM | 📝 | — | `sv/enums` | Mealy output depends on current input, single-always style |
 
 > Moore-only leaves students unable to recognise the more common Mealy
 > pattern in real codebases.
@@ -96,9 +87,9 @@ Flag numbers identify the weak dimension(s): 1=Concept Focus, 2=Starter Calibrat
 ### Chapter: Testbench Essentials
 | Slug | Title | Status | Score | Prereqs | Teaches |
 |---|---|---|---|---|---|
-| `sv/classes` | Classes and Objects | ✅ | 27/27 | `sv/tasks-functions` | `class`/`endclass`, fields, `function new()`, `this.`, handle semantics, `convert2string` |
+| `sv/classes` | Classes and Objects | ✅ | 27/27 | `sv/data-types` | `class`/`endclass`, fields, `function new()`, `this.`, handle semantics, `convert2string` |
 | `sv/queues-arrays` | Dynamic Arrays and Queues | ✅ | 27/27 | `sv/classes` | `type name[]`, `new[n]`, `.size()`, `type name[$]`, `push_back`, `pop_front` |
-| `sv/fork-join` | Concurrent Processes: fork...join | ✅ | 27/27 | `sv/tasks-functions` | `fork...join`, `fork...join_any`, `fork...join_none`, `automatic` tasks |
+| `sv/fork-join` | Concurrent Processes: fork...join | ✅ | 27/27 | `sv/events` | `fork...join`, `fork...join_any`, `fork...join_none`, `automatic` tasks |
 | `sv/randomization` | Constrained Randomization | ✅ | 27/27 | `sv/classes` | `rand`, `randomize()`, `constraint`, `inside`, inline `with {}`, `constraint_mode(0)` |
 
 ---
@@ -197,59 +188,6 @@ Flag numbers identify the weak dimension(s): 1=Concept Focus, 2=Starter Calibrat
 
 ---
 
-## Part 3 — Universal Verification Methodology
-
-### Chapter: UVM Foundations
-| Slug | Title | Status | Score | Prereqs | Teaches |
-|---|---|---|---|---|---|
-| `uvm/reporting` | The First UVM Test | ✅ | 24/27 ⚠️4,9 | `sv/modules-and-ports`, `sv/interfaces` | `uvm_component`, `uvm_test`, `` `uvm_info/warning/error ``, severity levels, `build_phase`/`run_phase`, objections |
-| `uvm/seq-item` | Sequence Items | ✅ | 24/27 ⚠️4,5,9 | `uvm/reporting`, `sv/packed-structs` | `uvm_sequence_item`, `` `uvm_object_utils ``, `rand` fields, constraints, `convert2string` |
-
-### Chapter: Stimulus
-| Slug | Title | Status | Score | Prereqs | Teaches |
-|---|---|---|---|---|---|
-| `uvm/sequence` | Sequences | ✅ | 25/27 ⚠️9 | `uvm/seq-item` | `uvm_sequence`, `body()`, `start_item`/`randomize`/`finish_item` loop |
-| `uvm/driver` | The Driver | ✅ | 24/27 ⚠️2,8,9 | `uvm/sequence`, `sv/interfaces`, `sv/always-ff` | `uvm_driver`, `get_next_item`/`item_done`, virtual interface driving, 1-cycle latency capture |
-| `uvm/constrained-random` | Constrained-Random Scenarios | ✅ | 25/27 ⚠️5,9 | `uvm/seq-item` | `dist`, inline `randomize() with {}`, `constraint_mode()` |
-
-### Chapter: Checking
-| Slug | Title | Status | Score | Prereqs | Teaches |
-|---|---|---|---|---|---|
-| `uvm/monitor` | Monitor and Scoreboard | ✅ | 25/27 ⚠️5,9 | `uvm/driver`, `uvm/seq-item` | `uvm_monitor`, `uvm_analysis_port`, `write()`, `uvm_scoreboard`, shadow memory |
-| `uvm/env` | Environment and Test | ✅ | 23/27 ⚠️5,8,9 | `uvm/monitor` | `uvm_env`, `uvm_agent`, analysis port → scoreboard wiring |
-
-### Chapter: Functional Coverage
-| Slug | Title | Status | Score | Prereqs | Teaches |
-|---|---|---|---|---|---|
-| `uvm/covergroup` | Functional Coverage | ✅ | 25/27 ⚠️5,9 | `uvm/monitor`, `sv/covergroup-basics` | functional coverage in UVM, `uvm_subscriber`, sampling transactions |
-| `uvm/cross-coverage` | Cross Coverage | ✅ | 24/27 ⚠️5,9 | `uvm/covergroup`, `sv/cross-coverage` | cross in UVM context, `addr × we` 2D coverage |
-| `uvm/coverage-driven` | Coverage-Driven Verification | ✅ | 25/27 ⚠️6,9 | `uvm/cross-coverage` | coverage-driven loop, `get_coverage()` exit condition |
-
-### Chapter: Advanced UVM
-| Slug | Title | Status | Score | Prereqs | Teaches |
-|---|---|---|---|---|---|
-| `uvm/factory-override` | Factory Overrides | ✅ | 25/27 ⚠️5,9 | `uvm/seq-item` | `uvm_factory`, `type_id::set_type_override`, corner-case testing via type substitution |
-| `uvm/virtual-seq` | Virtual Sequences | 💡 | — | `uvm/env` | `uvm_virtual_sequencer`, coordinating stimulus across multiple agents |
-| `uvm/ral` | Register Abstraction Layer (RAL) | 💡 | — | `uvm/driver` | `uvm_reg_block`, `uvm_reg`, frontdoor/backdoor register access |
-
----
-
-## Part 4 — cocotb
-
-### Chapter: cocotb Basics
-| Slug | Title | Status | Score | Prereqs | Teaches |
-|---|---|---|---|---|---|
-| `cocotb/first-test` | Your First cocotb Test | ✅ | 22/27 ⚠️2,4,9 | `sv/always-ff` (Python basics assumed) | `@cocotb.test()`, `dut.signal.value`, `await Timer()`, VCD generation |
-| `cocotb/clock-and-timing` | Clock and Timing | ✅ | 24/27 ⚠️4,9 | `cocotb/first-test` | `Clock()`, `start_soon()`, `await ClockCycles()`, sim time queries |
-
-### Chapter: Triggers & Clocks
-| Slug | Title | Status | Score | Prereqs | Teaches |
-|---|---|---|---|---|---|
-| `cocotb/edge-triggers` | Edge Triggers | ✅ | 24/27 ⚠️4,9 | `cocotb/clock-and-timing` | `RisingEdge`, `FallingEdge`, awaiting edge trigger objects |
-| `cocotb/clockcycles-patterns` | Clock Cycles & Patterns | ✅ | 25/27 ⚠️9 | `cocotb/edge-triggers` | multi-cycle sequences, burst patterns, structured test routines |
-
----
-
 ## Diagram opportunities (from MIT 6.111 research)
 
 Reference PDFs in `reference/mit-6111/` (CC BY-NC-SA 4.0, Chandrakasan, Spring 2006).
@@ -260,13 +198,10 @@ Listed by lesson, in priority order:
 | `sv/always-ff` | D latch vs. D register schematics — "level-sensitive vs. edge-triggered" side-by-side | L5 p2 |
 | `sv/always-ff` | Pipeline timing: one stage with Tcq, Tlogic, Tsu labeled; formula T > Tcq+Tlogic+Tsu | L5 p3-5 |
 | `sv/always-ff` | Synchronous vs. async reset waveform comparison | L5 |
-| `sv/fsm` | ✅ Moore block diagram SVG added (Comb. Logic ↔ State Reg, inputs/outputs) | L6 p6 |
-| `sv/fsm` | Level-to-pulse edge-detector as a 2-state worked example before the SRAM controller | L6 p7 |
 | `sv/welcome` | HDL design flow: Problem → Behavioral → HDL → Synthesis → Implementation | L1 p12 |
 | `sv/data-types` | Two's complement circular number line (overflow wraparound visualised) | L8-9 p3 |
 | `sv/modules-and-ports` | Common logic gates table: NAND/AND/NOR/OR with symbol + truth table + Boolean expression | L2 p9 |
 | `sv/always-comb` | Gate-level mux diagram (AND/OR/NOT tree) matching the case statement | L3 |
-| `sv/interfaces` | Two module boxes wired through a named interface bundle | — |
 
 ---
 
diff --git a/src/lessons/compiler-quarantine.test.js b/src/lessons/compiler-quarantine.test.js
new file mode 100644
index 0000000..37190e2
--- /dev/null
+++ b/src/lessons/compiler-quarantine.test.js
@@ -0,0 +1,32 @@
+import { describe, expect, it } from 'vitest';
+import { lessons } from './index.js';
+
+const browserBlocked = [
+  'sv/interfaces',
+  'sv/modports',
+  'sv/tasks-functions',
+  'sv/fsm',
+  'uvm/reporting',
+  'uvm/seq-item',
+  'uvm/sequence',
+  'uvm/driver',
+  'uvm/constrained-random',
+  'uvm/monitor',
+  'uvm/env',
+  'uvm/covergroup',
+  'uvm/cross-coverage',
+  'uvm/coverage-driven',
+  'uvm/factory-override',
+  'uvm/ral',
+  'cocotb/first-test',
+  'cocotb/clock-and-timing',
+  'cocotb/edge-triggers',
+  'cocotb/clockcycles-patterns'
+];
+
+describe('compiler-blocked lessons', () => {
+  it('does not publish lessons whose browser compiler path is not qualified', () => {
+    const published = new Set(lessons.map(({ slug }) => slug));
+    expect(browserBlocked.filter((slug) => published.has(slug))).toEqual([]);
+  });
+});
diff --git a/src/lessons/index.js b/src/lessons/index.js
index b11cbba..65f1261 100644
--- a/src/lessons/index.js
+++ b/src/lessons/index.js
@@ -79,8 +79,7 @@ export const parts = [
       { title: 'Introduction',          lessons: [L('sv/welcome'), L('sv/modules-and-ports'), L('sv/data-types'), L('sv/always-comb')] },
       { title: 'Sequential Logic',      lessons: [L('sv/events'), L('sv/always-ff'), L('sv/counter')] },
       { title: 'Data Types',            lessons: [L('sv/parameters'), L('sv/packed-structs')] },
-      { title: 'Interfaces & Procedures', lessons: [L('sv/interfaces'), L('sv/modports'), L('sv/tasks-functions')] },
-      { title: 'State Machines',        lessons: [L('sv/enums'), L('sv/fsm')] },
+      { title: 'State Machines',        lessons: [L('sv/enums')] },
       { title: 'Covergroups',            lessons: [L('sv/covergroup-basics'), L('sv/coverpoint-bins'), L('sv/cross-coverage')] },
       { title: 'Testbench Essentials',  lessons: [L('sv/classes'), L('sv/queues-arrays'), L('sv/fork-join'), L('sv/randomization')] },
     ],
@@ -100,32 +99,12 @@ export const parts = [
       { title: 'Formal Verification',       lessons: [L('sva/formal-assume'), L('sva/always-eventually'), L('sva/until'), L('sva/lec')] },
     ],
   },
-  {
-    title: 'Universal Verification Methodology',
-    chapters: [
-      { title: 'UVM Foundations', lessons: [L('uvm/reporting'), L('uvm/seq-item')] },
-      { title: 'Stimulus',        lessons: [L('uvm/sequence'), L('uvm/driver'), L('uvm/constrained-random')] },
-      { title: 'Checking',        lessons: [L('uvm/monitor'), L('uvm/env')] },
-      {
-        title: 'Functional Coverage',
-        lessons: [L('uvm/covergroup'), L('uvm/cross-coverage'), L('uvm/coverage-driven')],
-      },
-      { title: 'Advanced UVM',    lessons: [L('uvm/factory-override'), L('uvm/ral')] },
-    ],
-  },
   {
     title: 'RTL Design Patterns',
     chapters: [
       { title: 'Synthesis', lessons: [L('rtl/rtl-to-gates'), L('rtl/synthesis-gotchas')] },
     ],
   },
-  {
-    title: 'cocotb',
-    chapters: [
-      { title: 'cocotb Basics', lessons: [L('cocotb/first-test'), L('cocotb/clock-and-timing')] },
-      { title: 'Triggers & Clocks', lessons: [L('cocotb/edge-triggers'), L('cocotb/clockcycles-patterns')] },
-    ],
-  },
   {
     title: 'MLIR & MOX',
     chapters: [