diff --git a/dist/dde-with-observables.js b/dist/dde-with-observables.js
index bad5529..fab17cf 100644
--- a/dist/dde-with-observables.js
+++ b/dist/dde-with-observables.js
@@ -1,27 +1,27 @@
 //deka-dom-el library is available via global namespace `dde`
 (()=> {
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-assignAttribute: G,
-chainableAppend: nt,
-classListDeclarative: rt,
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diff --git a/dist/esm-with-observables.js b/dist/esm-with-observables.js
index a7268a6..d1da246 100644
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-* Investigate `__dde_attributes` key of the element.*/O.clear(...Object.values(r[S]))})(r)}),new Proxy(n,{apply(o,c,s){if(!s.length)return o();let d=s[0];return w(r,"set",t,d)}})};var Y={isObservable:M,processReactiveAttribute(t,e,n,r){if(!M(n))return n;let o=c=>r(e,c);return B(n,o),tt(n,o,t,e),n()}};function tt(t,e,...n){let{current:r}=b;r.prevent||r.host(function(o){o[W]||(o[W]=[],_.disconnected(()=>o[W].forEach(([[c,s]])=>C(c,s,c[p]?.host()===o)))(o)),o[W].push([[t,e],...n])})}function X(t,e){let n=(...r)=>r.length?pt(n,...r):lt(n);return at(n,t,e)}var ut=Object.assign(Object.create(null),{stopPropagation(){this.skip=!0}}),U=class extends Error{constructor(){super();let[e,...n]=this.stack.split(`
-`),r=e.slice(e.indexOf("@"),e.indexOf(".js:")+4);this.stack=n.find(o=>!o.includes(r))}};function at(t,e,n){let r=[];H(n)!=="[object Object]"&&(n={});let{onclear:o}=O.symbols;n[o]&&(r.push(n[o]),Reflect.deleteProperty(n,o));let{host:c}=b;return Reflect.defineProperty(t,p,{value:{value:e,actions:n,onclear:r,host:c,listeners:new Set,defined:new U},enumerable:!1,writable:!1,configurable:!0}),t.toJSON=()=>t(),Object.setPrototypeOf(t[p],ut),t}function dt(){return T[T.length-1]}function lt(t){if(!t[p])return;let{value:e,listeners:n}=t[p],r=dt();return r&&n.add(r),h.has(r)&&h.get(r).add(t),e}function pt(t,e,n){if(!t[p])return;let r=t[p];if(!(!n&&r.value===e))return r.value=e,r.listeners.forEach(o=>o(e)),e}function B(t,e){if(t[p])return t[p].listeners.add(e)}function C(t,e,n){let r=t[p];if(!r)return;let o=r.listeners.delete(e);if(n&&!r.listeners.size){if(t.clear(t),!h.has(r))return o;let c=h.get(r);if(!h.has(c))return o;h.get(c).forEach(s=>C(s,c,!0))}return o}$(Y);export{E as O,j as assign,G as assignAttribute,nt as chainableAppend,rt as classListDeclarative,y as createElement,xt as createElementNS,At as dispatchEvent,y as el,xt as elNS,w as elementAttribute,Ot as empty,M as isObservable,E as observable,_ as on,$ as registerReactivity,b as scope,Et as simulateSlots};
+var A={isObservable(e){return!1},processReactiveAttribute(e,t,n,r){return n}};function T(e,t=!0){return t?Object.assign(A,e):(Object.setPrototypeOf(e,A),e)}function C(e){return A.isPrototypeOf(e)&&e!==A?e:A}function x(e){return typeof e>"u"}function B(e){let t=typeof e;return t!=="object"?t:e===null?"null":Object.prototype.toString.call(e)}function N(e,t){if(!e||!(e instanceof AbortSignal))return!0;if(!e.aborted)return e.addEventListener("abort",t),function(){e.removeEventListener("abort",t)}}var $={setDeleteAttr:ee,ssr:""};function ee(e,t,n){if(Reflect.set(e,t,n),!!x(n)){if(Reflect.deleteProperty(e,t),e instanceof HTMLElement&&e.getAttribute(t)==="undefined")return e.removeAttribute(t);if(Reflect.get(e,t)==="undefined")return Reflect.set(e,t,"")}}var E=[{scope:document.body,host:e=>e?e(document.body):document.body,custom_element:!1,prevent:!0}],b={get current(){return E[E.length-1]},get host(){return this.current.host},preventDefault(){let{current:e}=this;return e.prevent=!0,e},get state(){return[...E]},push(e={}){return E.push(Object.assign({},this.current,{prevent:!1},e))},pushRoot(){return E.push(E[0])},pop(){if(E.length!==1)return E.pop()}};function H(...e){return this.appendOriginal(...e),this}function te(e){return e.append===H||(e.appendOriginal=e.append,e.append=H),e}var j;function y(e,t,...n){let r=C(this),o=0,c,s;switch((Object(t)!==t||r.isObservable(t))&&(t={textContent:t}),!0){case typeof e=="function":{o=1,b.push({scope:e,host:(...l)=>l.length?(o===1?n.unshift(...l):l.forEach(v=>v(s)),void 0):s}),c=e(t||void 0);let d=c instanceof DocumentFragment;if(c.nodeName==="#comment")break;let u=y.mark({type:"component",name:e.name,host:d?"this":"parentElement"});c.prepend(u),d&&(s=u);break}case e==="#text":c=P.call(this,document.createTextNode(""),t);break;case(e==="<>"||!e):c=P.call(this,document.createDocumentFragment(),t);break;case!!j:c=P.call(this,document.createElementNS(j,e),t);break;case!c:c=P.call(this,document.createElement(e),t)}return te(c),s||(s=c),n.forEach(d=>d(s)),o&&b.pop(),o=2,c}function _e(e){let t=Symbol.for("default"),n=Array.from(e.querySelectorAll("slot")).reduce((o,c)=>Reflect.set(o,c.name||t,c)&&o,{}),r=Reflect.has(n,t);return e.append=new Proxy(e.append,{apply(o,c,s){if(!s.length)return e;let d=document.createDocumentFragment();for(let u of s){if(!u||!u.slot){r&&d.appendChild(u);continue}let l=u.slot,v=n[l];O(u,"remove","slot"),v&&(v.replaceWith(u),Reflect.deleteProperty(n,l))}return r&&(n[t].replaceWith(d),Reflect.deleteProperty(n,t)),Object.values(n).forEach(u=>u.replaceWith(y().append(...Array.from(u.childNodes)))),e}}),e}y.mark=function(e,t=!1){e=Object.entries(e).map(([o,c])=>o+`="${c}"`).join(" ");let n=t?"":"/",r=document.createComment(`<dde:mark ${e}${$.ssr}${n}>`);return t||(r.end=document.createComment("</dde:mark>")),r};function Ee(e){let t=this;return function(...r){j=e;let o=y.call(t,...r);return j=void 0,o}}var{setDeleteAttr:I}=$,L=new WeakMap;function P(e,...t){if(!t.length)return e;L.set(e,G(e,this));for(let[n,r]of Object.entries(Object.assign({},...t)))Z.call(this,e,n,r);return L.delete(e),e}function Z(e,t,n){let{setRemoveAttr:r,s:o}=G(e,this),c=this;n=o.processReactiveAttribute(e,t,n,(d,u)=>Z.call(c,e,d,u));let[s]=t;if(s==="=")return r(t.slice(1),n);if(s===".")return J(e,t.slice(1),n);if(/(aria|data)([A-Z])/.test(t))return t=t.replace(/([a-z])([A-Z])/g,"$1-$2").toLowerCase(),r(t,n);switch(t==="className"&&(t="class"),t){case"xlink:href":return r(t,n,"http://www.w3.org/1999/xlink");case"textContent":return I(e,t,n);case"style":if(typeof n!="object")break;case"dataset":return F(o,n,J.bind(null,e[t]));case"ariaset":return F(o,n,(d,u)=>r("aria-"+d,u));case"classList":return ne.call(c,e,n)}return re(e,t)?I(e,t,n):r(t,n)}function G(e,t){if(L.has(e))return L.get(e);let r=(e instanceof SVGElement?ce:oe).bind(null,e,"Attribute"),o=C(t);return{setRemoveAttr:r,s:o}}function ne(e,t){let n=C(this);return F(n,t,(r,o)=>e.classList.toggle(r,o===-1?void 0:!!o)),e}function xe(e){return Array.from(e.children).forEach(t=>t.remove()),e}function O(e,t,n,r){return e instanceof HTMLElement?e[t+"Attribute"](n,r):e[t+"AttributeNS"](null,n,r)}function re(e,t){if(!Reflect.has(e,t))return!1;let n=V(e,t);return!x(n.set)}function V(e,t){if(e=Object.getPrototypeOf(e),!e)return{};let n=Object.getOwnPropertyDescriptor(e,t);return n||V(e,t)}function F(e,t,n){if(!(typeof t!="object"||t===null))return Object.entries(t).forEach(function([o,c]){o&&(c=e.processReactiveAttribute(t,o,c,n),n(o,c))})}function K(e){return Array.isArray(e)?e.filter(Boolean).join(" "):e}function oe(e,t,n,r){return e[(x(r)?"remove":"set")+t](n,K(r))}function ce(e,t,n,r,o=null){return e[(x(r)?"remove":"set")+t+"NS"](o,n,K(r))}function J(e,t,n){if(Reflect.set(e,t,n),!!x(n))return Reflect.deleteProperty(e,t)}function we(e,t,n){return t||(t={}),function(o,...c){n&&(c.unshift(o),o=typeof n=="function"?n():n);let s=c.length?new CustomEvent(e,Object.assign({detail:c[0]},t)):new Event(e,t);return o.dispatchEvent(s)}}function _(e,t,n){return function(o){return o.addEventListener(e,t,n),o}}var D=ie(),se=new WeakSet;_.connected=function(e,t){let{custom_element:n}=b.current,r="connected";return typeof t!="object"&&(t={}),t.once=!0,function(c){n&&(c=n);let s="dde:"+r;return c.addEventListener(s,e,t),c.__dde_lifecycleToEvents?c:c.isConnected?(c.dispatchEvent(new Event(s)),c):(N(t.signal,()=>D.offConnected(c,e))&&D.onConnected(c,e),c)}};_.disconnected=function(e,t){let{custom_element:n}=b.current,r="disconnected";return typeof t!="object"&&(t={}),t.once=!0,function(c){n&&(c=n);let s="dde:"+r;return c.addEventListener(s,e,t),c.__dde_lifecycleToEvents||N(t.signal,()=>D.offDisconnected(c,e))&&D.onDisconnected(c,e),c}};var z=new WeakMap;_.disconnectedAsAbort=function(e){if(z.has(e))return z.get(e);let t=new AbortController;return z.set(e,t),e(_.disconnected(()=>t.abort())),t};_.attributeChanged=function(e,t){let n="attributeChanged";return typeof t!="object"&&(t={}),function(o){let c="dde:"+n;if(o.addEventListener(c,e,t),o.__dde_lifecycleToEvents||se.has(o))return o;let s=new MutationObserver(function(u){for(let{attributeName:l,target:v}of u)v.dispatchEvent(new CustomEvent(c,{detail:[l,v.getAttribute(l)]}))});return N(t.signal,()=>s.disconnect())&&s.observe(o,{attributes:!0}),o}};function ie(){let e=new Map,t=!1,n=new MutationObserver(function(i){for(let f of i)if(f.type==="childList"){if(l(f.addedNodes,!0)){s();continue}v(f.removedNodes,!0)&&s()}});return{onConnected(i,f){c();let a=o(i);a.connected.has(f)||(a.connected.add(f),a.length_c+=1)},offConnected(i,f){if(!e.has(i))return;let a=e.get(i);a.connected.has(f)&&(a.connected.delete(f),a.length_c-=1,r(i,a))},onDisconnected(i,f){c();let a=o(i);a.disconnected.has(f)||(a.disconnected.add(f),a.length_d+=1)},offDisconnected(i,f){if(!e.has(i))return;let a=e.get(i);a.disconnected.has(f)&&(a.disconnected.delete(f),a.length_d-=1,r(i,a))}};function r(i,f){f.length_c||f.length_d||(e.delete(i),s())}function o(i){if(e.has(i))return e.get(i);let f={connected:new WeakSet,length_c:0,disconnected:new WeakSet,length_d:0};return e.set(i,f),f}function c(){t||(t=!0,n.observe(document.body,{childList:!0,subtree:!0}))}function s(){!t||e.size||(t=!1,n.disconnect())}function d(){return new Promise(function(i){(requestIdleCallback||requestAnimationFrame)(i)})}async function u(i){e.size>30&&await d();let f=[];if(!(i instanceof Node))return f;for(let a of e.keys())a===i||!(a instanceof Node)||i.contains(a)&&f.push(a);return f}function l(i,f){let a=!1;for(let g of i){if(f&&u(g).then(l),!e.has(g))continue;let w=e.get(g);w.length_c&&(g.dispatchEvent(new Event("dde:connected")),w.connected=new WeakSet,w.length_c=0,w.length_d||e.delete(g),a=!0)}return a}function v(i,f){let a=!1;for(let g of i)f&&u(g).then(v),!(!e.has(g)||!e.get(g).length_d)&&(g.dispatchEvent(new Event("dde:disconnected")),e.delete(g),a=!0);return a}}var p=Symbol.for("observable");function W(e){try{return Reflect.has(e,p)}catch{return!1}}var M=[],h=new WeakMap;function m(e,t){if(typeof e!="function")return Q(e,t);if(W(e))return e;let n=Q(),r=function(){let[o,...c]=h.get(r);if(h.set(r,new Set([o])),M.push(r),n(e()),M.pop(),!c.length)return;let s=h.get(r);for(let d of c)s.has(d)||S(d,r)};return h.set(n[p],r),h.set(r,new Set([n])),r(),n}m.action=function(e,t,...n){let r=e[p],{actions:o}=r;if(!o||!Reflect.has(o,t))throw new Error(`'${e}' has no action with name '${t}'!`);if(o[t].apply(r,n),r.skip)return Reflect.deleteProperty(r,"skip");r.listeners.forEach(c=>c(r.value))};m.on=function e(t,n,r={}){let{signal:o}=r;if(!(o&&o.aborted)){if(Array.isArray(t))return t.forEach(c=>e(c,n,r));U(t,n),o&&o.addEventListener("abort",()=>S(t,n))}};m.symbols={observable:p,onclear:Symbol.for("Observable.onclear")};m.clear=function(...e){for(let n of e){Reflect.deleteProperty(n,"toJSON");let r=n[p];r.onclear.forEach(o=>o.call(r)),t(n,r),Reflect.deleteProperty(n,p)}function t(n,r){r.listeners.forEach(o=>{if(r.listeners.delete(o),!h.has(o))return;let c=h.get(o);c.delete(n),!(c.size>1)&&(n.clear(...c),h.delete(o))})}};var k="__dde_reactive";m.el=function(e,t){let n=y.mark({type:"reactive"},!1),r=n.end,o=document.createDocumentFragment();o.append(n,r);let{current:c}=b,s=d=>{if(!n.parentNode||!r.parentNode)return S(e,s);b.push(c);let u=t(d);b.pop(),Array.isArray(u)||(u=[u]);let l=n;for(;(l=n.nextSibling)!==r;)l.remove();n.after(...u)};return U(e,s),Y(e,s,n,t),s(e()),o};var R="__dde_attributes";m.attribute=function(e,t=null){let n=m(t),r;return b.host(o=>{if(r=o,O(r,"has",e)?n(O(r,"get",e)):t!==null&&O(r,"set",e,t),o[R]){o[R][e]=n;return}r[R]={[e]:n},_.attributeChanged(function({detail:s}){/*! This maps attributes to observables (`S.attribute`).
+* Investigate `__dde_attributes` key of the element.*/let[d,u]=s,l=r[R][d];if(l)return l(u)})(r),_.disconnected(function(){/*! This removes all observables mapped to attributes (`S.attribute`).
+* Investigate `__dde_attributes` key of the element.*/m.clear(...Object.values(r[R]))})(r)}),new Proxy(n,{apply(o,c,s){if(!s.length)return o();let d=s[0];return O(r,"set",e,d)}})};var X={isObservable:W,processReactiveAttribute(e,t,n,r){if(!W(n))return n;let o=c=>r(t,c);return U(n,o),Y(n,o,e,t),n()}};function Y(e,t,...n){let{current:r}=b;r.prevent||r.host(function(o){o[k]||(o[k]=[],_.disconnected(()=>o[k].forEach(([[c,s]])=>S(c,s,c[p]?.host()===o)))(o)),o[k].push([[e,t],...n])})}function Q(e,t){let n=(...r)=>r.length?le(n,...r):de(n);return ue(n,e,t)}var fe=Object.assign(Object.create(null),{stopPropagation(){this.skip=!0}}),q=class extends Error{constructor(){super();let[t,...n]=this.stack.split(`
+`),r=t.slice(t.indexOf("@"),t.indexOf(".js:")+4);this.stack=n.find(o=>!o.includes(r))}};function ue(e,t,n){let r=[];B(n)!=="[object Object]"&&(n={});let{onclear:o}=m.symbols;n[o]&&(r.push(n[o]),Reflect.deleteProperty(n,o));let{host:c}=b;return Reflect.defineProperty(e,p,{value:{value:t,actions:n,onclear:r,host:c,listeners:new Set,defined:new q},enumerable:!1,writable:!1,configurable:!0}),e.toJSON=()=>e(),Object.setPrototypeOf(e[p],fe),e}function ae(){return M[M.length-1]}function de(e){if(!e[p])return;let{value:t,listeners:n}=e[p],r=ae();return r&&n.add(r),h.has(r)&&h.get(r).add(e),t}function le(e,t,n){if(!e[p])return;let r=e[p];if(!(!n&&r.value===t))return r.value=t,r.listeners.forEach(o=>o(t)),t}function U(e,t){if(e[p])return e[p].listeners.add(t)}function S(e,t,n){let r=e[p];if(!r)return;let o=r.listeners.delete(t);if(n&&!r.listeners.size){if(e.clear(e),!h.has(r))return o;let c=h.get(r);if(!h.has(c))return o;h.get(c).forEach(s=>S(s,c,!0))}return o}T(X);export{m as O,P as assign,Z as assignAttribute,te as chainableAppend,ne as classListDeclarative,y as createElement,Ee as createElementNS,we as dispatchEvent,y as el,Ee as elNS,O as elementAttribute,xe as empty,W as isObservable,m as observable,_ as on,T as registerReactivity,b as scope,_e as simulateSlots};
diff --git a/src/observables-lib.js b/src/observables-lib.js
index 09602b2..cfad2e2 100644
--- a/src/observables-lib.js
+++ b/src/observables-lib.js
@@ -43,20 +43,20 @@ export function observable(value, actions){
 	return out;
 }
 export { observable as O };
-observable.action= function(observable, name, ...a){
-	const s= observable[mark], { actions }= s;
+observable.action= function(o, name, ...a){
+	const s= o[mark], { actions }= s;
 	if(!actions || !Reflect.has(actions, name))
-		throw new Error(`'${observable}' has no action with name '${name}'!`);
+		throw new Error(`'${o}' has no action with name '${name}'!`);
 	actions[name].apply(s, a);
 	if(s.skip) return Reflect.deleteProperty(s, "skip");
 	s.listeners.forEach(l=> l(s.value));
 };
-observable.on= function on(observables, listener, options= {}){
-	const { observable: as }= options;
+observable.on= function on(o, listener, options= {}){
+	const { signal: as }= options;
 	if(as && as.aborted) return;
-	if(Array.isArray(observables)) return observables.forEach(s=> on(s, listener, options));
-	addObservableListener(observables, listener);
-	if(as) as.addEventListener("abort", ()=> removeObservableListener(observables, listener));
+	if(Array.isArray(o)) return o.forEach(s=> on(s, listener, options));
+	addObservableListener(o, listener);
+	if(as) as.addEventListener("abort", ()=> removeObservableListener(o, listener));
 	//TODO cleanup when observable removed
 };
 observable.symbols= {
@@ -64,23 +64,23 @@ observable.symbols= {
 	onclear: Symbol.for("Observable.onclear")
 };
 observable.clear= function(...observables){
-	for(const observable of observables){
-		Reflect.deleteProperty(observable, "toJSON");
-		const s= observable[mark];
+	for(const o of observables){
+		Reflect.deleteProperty(o, "toJSON");
+		const s= o[mark];
 		s.onclear.forEach(f=> f.call(s));
-		clearListDeps(observable, s);
-		Reflect.deleteProperty(observable, mark);
+		clearListDeps(o, s);
+		Reflect.deleteProperty(o, mark);
 	}
-	function clearListDeps(observable, s){
+	function clearListDeps(o, s){
 		s.listeners.forEach(l=> {
 			s.listeners.delete(l);
 			if(!deps.has(l)) return;
 			
 			const ls= deps.get(l);
-			ls.delete(observable);
+			ls.delete(o);
 			if(ls.size>1) return;
 			
-			observable.clear(...ls);
+			o.clear(...ls);
 			deps.delete(l);
 		});
 	}
@@ -88,7 +88,7 @@ observable.clear= function(...observables){
 const key_reactive= "__dde_reactive";
 import { el, elementAttribute } from "./dom.js";
 import { scope } from "./dom.js";
-observable.el= function(observable, map){
+observable.el= function(o, map){
 	const mark_start= el.mark({ type: "reactive" }, false);
 	const mark_end= mark_start.end;
 	const out= document.createDocumentFragment();
@@ -96,7 +96,7 @@ observable.el= function(observable, map){
 	const { current }= scope;
 	const reRenderReactiveElement= v=> {
 		if(!mark_start.parentNode || !mark_end.parentNode)
-			return removeObservableListener(observable, reRenderReactiveElement);
+			return removeObservableListener(o, reRenderReactiveElement);
 		scope.push(current);
 		let els= map(v);
 		scope.pop();
@@ -107,16 +107,16 @@ observable.el= function(observable, map){
 			el_r.remove();
 		mark_start.after(...els);
 	};
-	addObservableListener(observable, reRenderReactiveElement);
-	removeObservablesFromElements(observable, reRenderReactiveElement, mark_start, map);
-	reRenderReactiveElement(observable());
+	addObservableListener(o, reRenderReactiveElement);
+	removeObservablesFromElements(o, reRenderReactiveElement, mark_start, map);
+	reRenderReactiveElement(o());
 	return out;
 };
 import { on } from "./events.js";
 const key_attributes= "__dde_attributes";
 observable.attribute= function(name, initial= null){
 	//TODO host=element & reuse existing
-	const out= O(initial);
+	const out= observable(initial);
 	let element;
 	scope.host(el=> {
 		element= el;
@@ -138,7 +138,7 @@ observable.attribute= function(name, initial= null){
 		on.disconnected(function(){
 			/*! This removes all observables mapped to attributes (`S.attribute`).
 			 * Investigate `__dde_attributes` key of the element.*/
-			O.clear(...Object.values(element[key_attributes]));
+			observable.clear(...Object.values(element[key_attributes]));
 		})(element);
 	});
 	return new Proxy(out, {
@@ -161,7 +161,7 @@ export const observables_config= {
 		return attrs();
 	}
 };
-function removeObservablesFromElements(observable, listener, ...notes){
+function removeObservablesFromElements(o, listener, ...notes){
 	const { current }= scope;
 	if(current.prevent) return;
 	current.host(function(element){
@@ -172,18 +172,18 @@ function removeObservablesFromElements(observable, listener, ...notes){
 				 * Clears all Observables listeners added in the current scope/host (`S.el`, `assign`, …?).
 				 * You can investigate the `__dde_reactive` key of the element.
 				 * */
-				element[key_reactive].forEach(([ [ observable, listener ] ])=>
-					removeObservableListener(observable, listener, observable[mark]?.host() === element))
+				element[key_reactive].forEach(([ [ o, listener ] ])=>
+					removeObservableListener(o, listener, o[mark]?.host() === element))
 			)(element);
 		}
-		element[key_reactive].push([ [ observable, listener ], ...notes ]);
+		element[key_reactive].push([ [ o, listener ], ...notes ]);
 	});
 }
 
 function create(value, actions){
-	const observable=  (...value)=>
-		value.length ? write(observable, ...value) : read(observable);
-	return toObservable(observable, value, actions);
+	const o=  (...value)=>
+		value.length ? write(o, ...value) : read(o);
+	return toObservable(o, value, actions);
 }
 const protoSigal= Object.assign(Object.create(null), {
 	stopPropagation(){
@@ -198,17 +198,17 @@ class ObservableDefined extends Error{
 		this.stack= rest.find(l=> !l.includes(curr_file));
 	}
 }
-function toObservable(observable, value, actions){
+function toObservable(o, value, actions){
 	const onclear= [];
 	if(typeOf(actions)!=="[object Object]")
 		actions= {};
-	const { onclear: ocs }= O.symbols;
+	const { onclear: ocs }= observable.symbols;
 	if(actions[ocs]){
 		onclear.push(actions[ocs]);
 		Reflect.deleteProperty(actions, ocs);
 	}
 	const { host }= scope;
-	Reflect.defineProperty(observable, mark, {
+	Reflect.defineProperty(o, mark, {
 		value: {
 			value, actions, onclear, host,
 			listeners: new Set(),
@@ -218,40 +218,40 @@ function toObservable(observable, value, actions){
 		writable: false,
 		configurable: true
 	});
-	observable.toJSON= ()=> observable();
-	Object.setPrototypeOf(observable[mark], protoSigal);
-	return observable;
+	o.toJSON= ()=> o();
+	Object.setPrototypeOf(o[mark], protoSigal);
+	return o;
 }
 function currentContext(){
 	return stack_watch[stack_watch.length - 1];
 }
-function read(observable){
-	if(!observable[mark]) return;
-	const { value, listeners }= observable[mark];
+function read(o){
+	if(!o[mark]) return;
+	const { value, listeners }= o[mark];
 	const context= currentContext();
 	if(context) listeners.add(context);
-	if(deps.has(context)) deps.get(context).add(observable);
+	if(deps.has(context)) deps.get(context).add(o);
 	return value;
 }
-function write(observable, value, force){
-	if(!observable[mark]) return;
-	const s= observable[mark];
+function write(o, value, force){
+	if(!o[mark]) return;
+	const s= o[mark];
 	if(!force && s.value===value) return;
 	s.value= value;
 	s.listeners.forEach(l=> l(value));
 	return value;
 }
 
-function addObservableListener(observable, listener){
-	if(!observable[mark]) return;
-	return observable[mark].listeners.add(listener);
+function addObservableListener(o, listener){
+	if(!o[mark]) return;
+	return o[mark].listeners.add(listener);
 }
-function removeObservableListener(observable, listener, clear_when_empty){
-	const s= observable[mark];
+function removeObservableListener(o, listener, clear_when_empty){
+	const s= o[mark];
 	if(!s) return;
 	const out= s.listeners.delete(listener);
 	if(clear_when_empty && !s.listeners.size){
-		observable.clear(observable);
+		o.clear(o);
 		if(!deps.has(s)) return out;
 		const c= deps.get(s);
 		if(!deps.has(c)) return out;