diff --git a/codecs/basis/enc/basis_enc.cpp b/codecs/basis/enc/basis_enc.cpp
index 6b9956c5..8bdcdf31 100644
--- a/codecs/basis/enc/basis_enc.cpp
+++ b/codecs/basis/enc/basis_enc.cpp
@@ -7,7 +7,9 @@
 using namespace emscripten;
 using namespace basisu;
 
-struct BasisOptions {};
+struct BasisOptions {
+  uint8_t quality;
+};
 
 thread_local const val Uint8Array = val::global("Uint8Array");
 
@@ -26,7 +28,7 @@ val encode(std::string image_in, int image_width, int image_height, BasisOptions
   params.m_uastc = true;
   // No printf pls
   params.m_status_output = false;
-  params.m_compression_level = 2; /* 0-4 */
+  params.m_compression_level = opts.quality;
   params.m_source_images.push_back(img);
 
   if (!compressor.init(params)) {
@@ -44,8 +46,7 @@ val encode(std::string image_in, int image_width, int image_height, BasisOptions
 }
 
 EMSCRIPTEN_BINDINGS(my_module) {
-  value_object<BasisOptions>("BasisOptions");
-  // .field("quality", &MozJpegOptions::quality);
+  value_object<BasisOptions>("BasisOptions").field("quality", &BasisOptions::quality);
 
   function("encode", &encode);
 }
diff --git a/codecs/basis/enc/basis_enc.d.ts b/codecs/basis/enc/basis_enc.d.ts
index cdcc8f3b..bed974a3 100644
--- a/codecs/basis/enc/basis_enc.d.ts
+++ b/codecs/basis/enc/basis_enc.d.ts
@@ -1,4 +1,5 @@
 export interface EncodeOptions {
+  quality: number;
 }
 
 export interface BasisModule extends EmscriptenWasm.Module {
diff --git a/codecs/basis/enc/basis_enc.js b/codecs/basis/enc/basis_enc.js
index e95036c0..7ad8cc87 100644
--- a/codecs/basis/enc/basis_enc.js
+++ b/codecs/basis/enc/basis_enc.js
@@ -8,53 +8,53 @@ function(Module) {
 
 
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+var Z=z?"destructors":"null";A="throwBindingError invoker fn runDestructors retType classParam".split(" ");n=[R,n,g,Na,h[0],h[1]];y&&(m+="var thisWired = classParam.toWireType("+Z+", this);\n");for(p=0;p<q-2;++p)m+="var arg"+p+"Wired = argType"+p+".toWireType("+Z+", arg"+p+"); // "+h[p+2].name+"\n",A.push("argType"+p),n.push(h[p+2]);y&&(H="thisWired"+(0<H.length?", ":"")+H);m+=(ka?"var rv = ":"")+"invoker(fn"+(0<H.length?", ":"")+H+");\n";if(z)m+="runDestructors(destructors);\n";else for(p=y?1:2;p<
+h.length;++p)q=1===p?"thisWired":"arg"+(p-2)+"Wired",null!==h[p].da&&(m+=q+"_dtor("+q+"); // "+h[p].name+"\n",A.push(q+"_dtor"),n.push(h[p].da));ka&&(m+="var ret = retType.fromWireType(rv);\nreturn ret;\n");A.push(m+"}\n");h=bb(A).apply(null,n);p=b-1;if(!f.hasOwnProperty(l))throw new Ta("Replacing nonexistant public symbol");void 0!==f[l].ca&&void 0!==p?f[l].ca[p]=h:(f[l]=h,f[l].ja=p);return[]})},k:function(a,b,c,d,e){function g(m){return m}b=Q(b);-1===e&&(e=4294967295);var k=Va(c);if(0===d){var h=
+32-8*c;g=function(m){return m<<h>>>h}}var l=-1!=b.indexOf("unsigned");P(a,{name:b,fromWireType:g,toWireType:function(m,n){if("number"!==typeof n&&"boolean"!==typeof n)throw new TypeError('Cannot convert "'+$a(n)+'" to '+this.name);if(n<d||n>e)throw new TypeError('Passing a number "'+$a(n)+'" from JS side to C/C++ side to an argument of type "'+b+'", which is outside the valid range ['+d+", "+e+"]!");return l?n>>>0:n|0},argPackAdvance:8,readValueFromPointer:kb(b,k,0!==d),da:null})},j:function(a,b,
+c){function d(g){g>>=2;var k=I;return new e(F,k[g+1],k[g])}var e=[Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array][b];c=Q(c);P(a,{name:c,fromWireType:d,argPackAdvance:8,readValueFromPointer:d},{pa:!0})},w:function(a,b){b=Q(b);var c="std::string"===b;P(a,{name:b,fromWireType:function(d){var e=I[d>>2];if(c)for(var g=d+4,k=0;k<=e;++k){var h=d+4+k;if(k==e||0==C[h]){g=ia(g,h-g);if(void 0===l)var l=g;else l+=String.fromCharCode(0),l+=g;g=h+1}}else{l=Array(e);
+for(k=0;k<e;++k)l[k]=String.fromCharCode(C[d+4+k]);l=l.join("")}V(d);return l},toWireType:function(d,e){e instanceof ArrayBuffer&&(e=new Uint8Array(e));var g="string"===typeof e;g||e instanceof Uint8Array||e instanceof Uint8ClampedArray||e instanceof Int8Array||R("Cannot pass non-string to std::string");var k=(c&&g?function(){for(var m=0,n=0;n<e.length;++n){var q=e.charCodeAt(n);55296<=q&&57343>=q&&(q=65536+((q&1023)<<10)|e.charCodeAt(++n)&1023);127>=q?++m:m=2047>=q?m+2:65535>=q?m+3:m+4}return m}:
+function(){return e.length})(),h=sb(4+k+1);I[h>>2]=k;if(c&&g)ja(e,h+4,k+1);else if(g)for(g=0;g<k;++g){var l=e.charCodeAt(g);255<l&&(V(h),R("String has UTF-16 code units that do not fit in 8 bits"));C[h+4+g]=l}else for(g=0;g<k;++g)C[h+4+g]=e[g];null!==d&&d.push(V,h);return h},argPackAdvance:8,readValueFromPointer:Oa,da:function(d){V(d)}})},p:function(a,b,c){c=Q(c);if(2===b){var d=ma;var e=oa;var g=pa;var k=function(){return na};var h=1}else 4===b&&(d=qa,e=ra,g=sa,k=function(){return I},h=2);P(a,{name:c,
+fromWireType:function(l){for(var m=I[l>>2],n=k(),q,y=l+4,z=0;z<=m;++z){var p=l+4+z*b;if(z==m||0==n[p>>h])y=d(y,p-y),void 0===q?q=y:(q+=String.fromCharCode(0),q+=y),y=p+b}V(l);return q},toWireType:function(l,m){"string"!==typeof m&&R("Cannot pass non-string to C++ string type "+c);var n=g(m),q=sb(4+n+b);I[q>>2]=n>>h;e(m,q+4,n+b);null!==l&&l.push(V,q);return q},argPackAdvance:8,readValueFromPointer:Oa,da:function(l){V(l)}})},R:function(a,b,c,d,e,g){Ma[a]={name:Q(b),ra:U(c,d),sa:U(e,g),ha:[]}},P:function(a,
+b,c,d,e,g,k,h,l,m){Ma[a].ha.push({ka:Q(b),oa:c,ma:U(d,e),na:g,za:k,ya:U(h,l),Aa:m})},M:function(a,b){b=Q(b);P(a,{Da:!0,name:b,argPackAdvance:0,fromWireType:function(){},toWireType:function(){}})},n:Za,z:function(a){if(0===a)return T(mb());var b=lb[a];a=void 0===b?Q(a):b;return T(mb()[a])},N:function(a){4<a&&(S[a].ga+=1)},x:function(a,b,c,d){a||R("Cannot use deleted val. handle = "+a);a=S[a].value;var e=ob[b];if(!e){e="";for(var g=0;g<b;++g)e+=(0!==g?", ":"")+"arg"+g;var k="return function emval_allocator_"+
+b+"(constructor, argTypes, args) {\n";for(g=0;g<b;++g)k+="var argType"+g+" = requireRegisteredType(Module['HEAP32'][(argTypes >>> 2) + "+g+'], "parameter '+g+'");\nvar arg'+g+" = argType"+g+".readValueFromPointer(args);\nargs += argType"+g+"['argPackAdvance'];\n";e=(new Function("requireRegisteredType","Module","__emval_register",k+("var obj = new constructor("+e+");\nreturn __emval_register(obj);\n}\n")))(nb,f,T);ob[b]=e}return e(a,c,d)},y:function(a,b){a=nb(a,"_emval_take_value");a=a.readValueFromPointer(b);
+return T(a)},f:function(){x()},h:function(a,b){W(a,b||1);throw"longjmp";},D:function(a,b,c){C.copyWithin(a,b,b+c)},l:function(a){a>>>=0;var b=C.length;if(2147483648<a)return!1;for(var c=1;4>=c;c*=2){var d=b*(1+.2/c);d=Math.min(d,a+100663296);d=Math.max(16777216,a,d);0<d%65536&&(d+=65536-d%65536);a:{try{B.grow(Math.min(2147483648,d)-F.byteLength+65535>>>16);va(B.buffer);var e=1;break a}catch(g){}e=void 0}if(e)return!0}return!1},u:function(){return 0},G:function(a,b,c,d){a=La.Ca(a);b=La.Ba(a,b,c);E[d>>
+2]=b;return 0},B:function(){},t:function(a,b,c,d){for(var e=0,g=0;g<c;g++){for(var k=E[b+8*g>>2],h=E[b+(8*g+4)>>2],l=0;l<h;l++){var m=C[k+l],n=Ka[a];if(0===m||10===m){for(m=0;n[m]&&!(NaN<=m);)++m;m=ha.decode(n.subarray?n.subarray(0,m):new Uint8Array(n.slice(0,m)));(1===a?da:v)(m);n.length=0}else n.push(m)}e+=h}E[d>>2]=e;return 0},d:function(){return ea|0},i:function(a){var b=Date.now();E[a>>2]=b/1E3|0;E[a+4>>2]=b%1E3*1E3|0;return 0},m:tb,g:ub,r:vb,q:wb,o:xb,e:yb,C:zb,a:B,c:function(a){ea=a|0},F:function(a){switch(a){case 30:return 16384;
+case 85:return 131072;case 132:case 133:case 12:case 137:case 138:case 15:case 235:case 16:case 17:case 18:case 19:case 20:case 149:case 13:case 10:case 236:case 153:case 9:case 21:case 22:case 159:case 154:case 14:case 77:case 78:case 139:case 80:case 81:case 82:case 68:case 67:case 164:case 11:case 29:case 47:case 48:case 95:case 52:case 51:case 46:case 79:return 200809;case 27:case 246:case 127:case 128:case 23:case 24:case 160:case 161:case 181:case 182:case 242:case 183:case 184:case 243:case 244:case 245:case 165:case 178:case 179:case 49:case 50:case 168:case 169:case 175:case 170:case 171:case 172:case 97:case 76:case 32:case 173:case 35:return-1;
+case 176:case 177:case 7:case 155:case 8:case 157:case 125:case 126:case 92:case 93:case 129:case 130:case 131:case 94:case 91:return 1;case 74:case 60:case 69:case 70:case 4:return 1024;case 31:case 42:case 72:return 32;case 87:case 26:case 33:return 2147483647;case 34:case 1:return 47839;case 38:case 36:return 99;case 43:case 37:return 2048;case 0:return 2097152;case 3:return 65536;case 28:return 32768;case 44:return 32767;case 75:return 16384;case 39:return 1E3;case 89:return 700;case 71:return 256;
+case 40:return 255;case 2:return 100;case 180:return 64;case 25:return 20;case 5:return 16;case 6:return 6;case 73:return 4;case 84:return"object"===typeof navigator?navigator.hardwareConcurrency||1:1}E[Ab()>>2]=28;return-1}};
+(function(){function a(e){f.asm=e.exports;J=f.asm.S;K--;f.monitorRunDependencies&&f.monitorRunDependencies(K);0==K&&(null!==Ca&&(clearInterval(Ca),Ca=null),L&&(e=L,L=null,e()))}function b(e){a(e.instance)}function c(e){return Ga().then(function(g){return WebAssembly.instantiate(g,d)}).then(e,function(g){v("failed to asynchronously prepare wasm: "+g);x(g)})}var d={a:Bb};K++;f.monitorRunDependencies&&f.monitorRunDependencies(K);if(f.instantiateWasm)try{return f.instantiateWasm(d,a)}catch(e){return v("Module.instantiateWasm callback failed with error: "+
+e),!1}(function(){return w||"function"!==typeof WebAssembly.instantiateStreaming||Da()||"function"!==typeof fetch?c(b):fetch(M,{credentials:"same-origin"}).then(function(e){return WebAssembly.instantiateStreaming(e,d).then(b,function(g){v("wasm streaming compile failed: "+g);v("falling back to ArrayBuffer instantiation");return c(b)})})})().catch(ba);return{}})();
+var rb=f.___wasm_call_ctors=function(){return(rb=f.___wasm_call_ctors=f.asm.T).apply(null,arguments)},V=f._free=function(){return(V=f._free=f.asm.U).apply(null,arguments)},sb=f._malloc=function(){return(sb=f._malloc=f.asm.V).apply(null,arguments)},ib=f.___getTypeName=function(){return(ib=f.___getTypeName=f.asm.W).apply(null,arguments)};f.___embind_register_native_and_builtin_types=function(){return(f.___embind_register_native_and_builtin_types=f.asm.X).apply(null,arguments)};
+var Ab=f.___errno_location=function(){return(Ab=f.___errno_location=f.asm.Y).apply(null,arguments)},X=f.stackSave=function(){return(X=f.stackSave=f.asm.Z).apply(null,arguments)},Y=f.stackRestore=function(){return(Y=f.stackRestore=f.asm._).apply(null,arguments)},W=f._setThrew=function(){return(W=f._setThrew=f.asm.$).apply(null,arguments)};f.dynCall_jiiii=function(){return(f.dynCall_jiiii=f.asm.aa).apply(null,arguments)};f.dynCall_jiji=function(){return(f.dynCall_jiji=f.asm.ba).apply(null,arguments)};
+function yb(a,b,c){var d=X();try{J.get(a)(b,c)}catch(e){Y(d);if(e!==e+0&&"longjmp"!==e)throw e;W(1,0)}}function xb(a,b){var c=X();try{J.get(a)(b)}catch(d){Y(c);if(d!==d+0&&"longjmp"!==d)throw d;W(1,0)}}function vb(a,b,c,d){var e=X();try{return J.get(a)(b,c,d)}catch(g){Y(e);if(g!==g+0&&"longjmp"!==g)throw g;W(1,0)}}function ub(a,b,c){var d=X();try{return J.get(a)(b,c)}catch(e){Y(d);if(e!==e+0&&"longjmp"!==e)throw e;W(1,0)}}
+function tb(a,b){var c=X();try{return J.get(a)(b)}catch(d){Y(c);if(d!==d+0&&"longjmp"!==d)throw d;W(1,0)}}function wb(a,b,c,d,e,g){var k=X();try{return J.get(a)(b,c,d,e,g)}catch(h){Y(k);if(h!==h+0&&"longjmp"!==h)throw h;W(1,0)}}function zb(a,b,c,d,e){var g=X();try{J.get(a)(b,c,d,e)}catch(k){Y(g);if(k!==k+0&&"longjmp"!==k)throw k;W(1,0)}}var Cb;L=function Db(){Cb||Eb();Cb||(L=Db)};
+function Eb(){function a(){if(!Cb&&(Cb=!0,f.calledRun=!0,!fa)){Ha(ya);Ha(za);aa(f);if(f.onRuntimeInitialized)f.onRuntimeInitialized();if(f.postRun)for("function"==typeof f.postRun&&(f.postRun=[f.postRun]);f.postRun.length;){var b=f.postRun.shift();Aa.unshift(b)}Ha(Aa)}}if(!(0<K)){if(f.preRun)for("function"==typeof f.preRun&&(f.preRun=[f.preRun]);f.preRun.length;)Ba();Ha(xa);0<K||(f.setStatus?(f.setStatus("Running..."),setTimeout(function(){setTimeout(function(){f.setStatus("")},1);a()},1)):a())}}
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diff --git a/codecs/basis/enc/basis_enc.wasm b/codecs/basis/enc/basis_enc.wasm
index 92b45cb2..2f181f24 100755
Binary files a/codecs/basis/enc/basis_enc.wasm and b/codecs/basis/enc/basis_enc.wasm differ
diff --git a/src/features/encoders/basis/client/index.tsx b/src/features/encoders/basis/client/index.tsx
index 78f506ef..d3296578 100644
--- a/src/features/encoders/basis/client/index.tsx
+++ b/src/features/encoders/basis/client/index.tsx
@@ -1,21 +1,27 @@
-import { EncodeOptions, defaultOptions } from '../shared/meta';
+import { EncodeOptions } from '../shared/meta';
 import type WorkerBridge from 'client/lazy-app/worker-bridge';
 import { h, Component } from 'preact';
-import { preventDefault, shallowEqual } from 'client/lazy-app/util';
+import {
+  inputFieldChecked,
+  inputFieldValueAsNumber,
+  preventDefault,
+} from 'client/lazy-app/util';
 import * as style from 'client/lazy-app/Compress/Options/style.css';
+import linkState from 'linkstate';
+import Range from 'client/lazy-app/Compress/Options/Range';
 import Checkbox from 'client/lazy-app/Compress/Options/Checkbox';
 import Expander from 'client/lazy-app/Compress/Options/Expander';
 import Select from 'client/lazy-app/Compress/Options/Select';
-import Range from 'client/lazy-app/Compress/Options/Range';
-import linkState from 'linkstate';
 import Revealer from 'client/lazy-app/Compress/Options/Revealer';
 
-export const encode = (
+export function encode(
   signal: AbortSignal,
   workerBridge: WorkerBridge,
   imageData: ImageData,
   options: EncodeOptions,
-) => workerBridge.basisEncode(signal, imageData, options);
+) {
+  return workerBridge.basisEncode(signal, imageData, options);
+}
 
 interface Props {
   options: EncodeOptions;
@@ -23,89 +29,53 @@ interface Props {
 }
 
 interface State {
-  options: EncodeOptions;
   showAdvanced: boolean;
 }
 
 export class Options extends Component<Props, State> {
-  static getDerivedStateFromProps(
-    props: Props,
-    state: State,
-  ): Partial<State> | null {
-    if (state.options && shallowEqual(state.options, props.options)) {
-      return null;
-    }
-
-    const { options } = props;
-
-    return {
-      options,
-    };
-  }
-
-  // The rest of the defaults are set in getDerivedStateFromProps
   state: State = {
     showAdvanced: false,
-  } as State;
-
-  private _inputChangeCallbacks = new Map<string, (event: Event) => void>();
-
-  private _inputChange = (
-    prop: keyof State,
-    type: 'number' | 'boolean' | 'string',
-  ) => {
-    // Cache the callback for performance
-    if (!this._inputChangeCallbacks.has(prop)) {
-      this._inputChangeCallbacks.set(prop, (event: Event) => {
-        const formEl = event.target as HTMLInputElement | HTMLSelectElement;
-        const newVal =
-          type === 'boolean'
-            ? 'checked' in formEl
-              ? formEl.checked
-              : !!formEl.value
-            : type === 'number'
-            ? Number(formEl.value)
-            : formEl.value;
-
-        const newState: Partial<State> = {
-          [prop]: newVal,
-        };
-
-        const optionState = {
-          ...this.state,
-          ...newState,
-        };
-
-        const newOptions: EncodeOptions = {};
-
-        // Updating options, so we don't recalculate in getDerivedStateFromProps.
-        newState.options = newOptions;
-
-        this.setState(
-          // It isn't clear to me why I have to cast this :)
-          newState as State,
-        );
-
-        this.props.onChange(newOptions);
-      });
-    }
-
-    return this._inputChangeCallbacks.get(prop)!;
   };
 
-  render(_: Props, {}: State) {
+  onChange = (event: Event) => {
+    const form = (event.currentTarget as HTMLInputElement).closest(
+      'form',
+    ) as HTMLFormElement;
+    const { options } = this.props;
+
+    const newOptions: EncodeOptions = {
+      // Copy over options the form doesn't currently care about, eg arithmetic
+      ...this.props.options,
+      // .value
+      quality: inputFieldValueAsNumber(form.quality, options.quality),
+    };
+    this.props.onChange(newOptions);
+  };
+
+  render({ options }: Props, { showAdvanced }: State) {
+    // I'm rendering both lossy and lossless forms, as it becomes much easier when
+    // gathering the data.
     return (
       <form class={style.optionsSection} onSubmit={preventDefault}>
         <div class={style.optionOneCell}>
           <Range
+            name="quality"
             min="0"
             max="4"
-            // value={quality}
-            // onInput={this._inputChange('quality', 'number')}
+            value={options.quality}
+            onInput={this.onChange}
           >
             Quality:
           </Range>
         </div>
+        <label class={style.optionReveal}>
+          <Revealer
+            checked={showAdvanced}
+            onChange={linkState(this, 'showAdvanced')}
+          />
+          Advanced settings
+        </label>
+        <Expander>{showAdvanced ? <div>Nothing here yet</div> : null}</Expander>
       </form>
     );
   }
diff --git a/src/features/encoders/basis/shared/meta.ts b/src/features/encoders/basis/shared/meta.ts
index 7f640f15..b044d41a 100644
--- a/src/features/encoders/basis/shared/meta.ts
+++ b/src/features/encoders/basis/shared/meta.ts
@@ -17,4 +17,6 @@ export { EncodeOptions };
 export const label = 'Basis';
 export const mimeType = 'image/basisu';
 export const extension = 'basis';
-export const defaultOptions: EncodeOptions = {};
+export const defaultOptions: EncodeOptions = {
+  quality: 2,
+};